1 REQUIREMENTS You will need to complete the following tasks and deliver your finding in a written report by August 6th. Research the six scenarios given below in option 1 for added capacity to uncover any additional costs/benefits to society these options might pose. Write a two page summary describing each scenario. Discuss the pros and cons of each scenario, including such items as renewable sources of fuel, environmental factors, etc. Give examples of each type of project by name and location and indicate the sources of your information. Please use either IEEE or APA style. Do an economic analysis of the six scenarios. Use a 20-year period and assume an inflation rate of 4 percent. Include your calculations and any assumptions in the report. Also answer the following questions: Which scenario is the best from an economic basis? Are there any other considerations, such as environmental/health/social issues, which should be considered? Which scenario have you selected based on the answers to a and b? What is the estimated timeframe to implement the different options? (base your timelines on existing projects of similar size if possible, use MS Project/Project Libre to generate the timelines) Make a recommendation regarding the best option for the utility. 2 Situations A utility company in one of the western states is considering the addition of 50 megawatts of generating capacity to meet expected demands for electrical energy by the year 2025. The three options that the utility has are: Add generating capacity. Constructing one of the scenarios below would do this. Purchase power from Canada under terms of a 20-year contract. Do neither of the above. This assumes that brownouts will occur during high demand periods. The utility presently has 200 megawatts of installed capacity and generates an average of 1.2 billion kilowatt-hours annually. Maximum generation capability is 1.3 billion kW-hours. By the year 2025, this reserve of 100,000,000 kW-hours will be used. 2.1 OPTION 1 – ADD GENERATING CAPACITY For this option there are six possible scenarios: Hydroelectric dam. Initial cost is $ 50 million. Annual operating and maintenance cost is $ 1.7 million. Project life is 30 years before a major rebuild is required. Wind farm. Initial cost is $ 28 million. Annual operating and maintenance cost is $ 2.5 million. Project life is 12 years. At this time new equipment will be required. Solar power. Initial cost is $ 32 million. Annual operating and maintenance cost is $ 1.1 million. Project life is 10 years. Natural gas turbines. Initial cost is $ 14 million. Annual operating and maintenance cost is $2.0 million. Project life is 12 years. Nuclear plant. Initial cost is $ 70 million. Annual operating and maintenance cost is $ 2.0 million. Project life is 25 years. Coal-fired turbines. Initial cost is $ 35 million. Annual operating and maintenance cost is $ 2.7 million. Project life is 28 years. 2.2 OPTION 2 – BUY POWER FROM CANADA The annual additional energy requirement is 350,000,000 kilowatt-hours. The cost of energy from Canada is 1.48 cents per kilowatt-hour for the first year. The price will be escalated at 4 percent annually for the 20-year contract period. 2.3 OPTION 3 – DO NOTHING Local municipalities are very opposed to this option since companies may have to close down for short periods of time. Also, it would be very difficult to attract new businesses. If nothing is done, by the year 2025 it is anticipated that some companies will be without power for short periods of time during the summer months. These are known as brownouts. It is estimated, based on historical data that these outages will occur once a week during July and August for periods of 6 hours.

1 REQUIREMENTS You will need to complete the following tasks and deliver your finding in a written report by August 6th. Research the six scenarios given below in option 1 for added capacity to uncover any additional costs/benefits to society these options might pose. Write a two page summary describing each scenario. Discuss the pros and cons of each scenario, including such items as renewable sources of fuel, environmental factors, etc. Give examples of each type of project by name and location and indicate the sources of your information. Please use either IEEE or APA style. Do an economic analysis of the six scenarios. Use a 20-year period and assume an inflation rate of 4 percent. Include your calculations and any assumptions in the report. Also answer the following questions: Which scenario is the best from an economic basis? Are there any other considerations, such as environmental/health/social issues, which should be considered? Which scenario have you selected based on the answers to a and b? What is the estimated timeframe to implement the different options? (base your timelines on existing projects of similar size if possible, use MS Project/Project Libre to generate the timelines) Make a recommendation regarding the best option for the utility. 2 Situations A utility company in one of the western states is considering the addition of 50 megawatts of generating capacity to meet expected demands for electrical energy by the year 2025. The three options that the utility has are: Add generating capacity. Constructing one of the scenarios below would do this. Purchase power from Canada under terms of a 20-year contract. Do neither of the above. This assumes that brownouts will occur during high demand periods. The utility presently has 200 megawatts of installed capacity and generates an average of 1.2 billion kilowatt-hours annually. Maximum generation capability is 1.3 billion kW-hours. By the year 2025, this reserve of 100,000,000 kW-hours will be used. 2.1 OPTION 1 – ADD GENERATING CAPACITY For this option there are six possible scenarios: Hydroelectric dam. Initial cost is $ 50 million. Annual operating and maintenance cost is $ 1.7 million. Project life is 30 years before a major rebuild is required. Wind farm. Initial cost is $ 28 million. Annual operating and maintenance cost is $ 2.5 million. Project life is 12 years. At this time new equipment will be required. Solar power. Initial cost is $ 32 million. Annual operating and maintenance cost is $ 1.1 million. Project life is 10 years. Natural gas turbines. Initial cost is $ 14 million. Annual operating and maintenance cost is $2.0 million. Project life is 12 years. Nuclear plant. Initial cost is $ 70 million. Annual operating and maintenance cost is $ 2.0 million. Project life is 25 years. Coal-fired turbines. Initial cost is $ 35 million. Annual operating and maintenance cost is $ 2.7 million. Project life is 28 years. 2.2 OPTION 2 – BUY POWER FROM CANADA The annual additional energy requirement is 350,000,000 kilowatt-hours. The cost of energy from Canada is 1.48 cents per kilowatt-hour for the first year. The price will be escalated at 4 percent annually for the 20-year contract period. 2.3 OPTION 3 – DO NOTHING Local municipalities are very opposed to this option since companies may have to close down for short periods of time. Also, it would be very difficult to attract new businesses. If nothing is done, by the year 2025 it is anticipated that some companies will be without power for short periods of time during the summer months. These are known as brownouts. It is estimated, based on historical data that these outages will occur once a week during July and August for periods of 6 hours.

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The following equation can be used to compute values of y as a function of x: y = b  e?ax  sin(b  x)  (0:012  x4 ? 0:15  x3 + 0:075  x2 + 2:5  x) where a and b are parameters. Write the equation for implementation with MATLAB, where a = 2, b = 5, and x is a vector holding values from 0 to =24 in increments of x = =40. Employ the minimum number of periods (i.e., dot notation) so that your formulation yields a vector for y. In addition, compute the vector z = y2 where each element holds the square of each element of y. Combine x, y, and z into a matrix w, where each column holds one of the variables, and display w using the short g format. In addition, generate a labeled plot of y and z versus x. Include a legend on the plot (use help to understand how to do this). For y, use a 1:5-point, dashdotted red line with 14-point, red-edged white-faced pentagram-shaped markers. For z, use a standard-sized (i.e., default) solid blue line with standard-sized, blue-edged, green-faced square markers.

The following equation can be used to compute values of y as a function of x: y = b  e?ax  sin(b  x)  (0:012  x4 ? 0:15  x3 + 0:075  x2 + 2:5  x) where a and b are parameters. Write the equation for implementation with MATLAB, where a = 2, b = 5, and x is a vector holding values from 0 to =24 in increments of x = =40. Employ the minimum number of periods (i.e., dot notation) so that your formulation yields a vector for y. In addition, compute the vector z = y2 where each element holds the square of each element of y. Combine x, y, and z into a matrix w, where each column holds one of the variables, and display w using the short g format. In addition, generate a labeled plot of y and z versus x. Include a legend on the plot (use help to understand how to do this). For y, use a 1:5-point, dashdotted red line with 14-point, red-edged white-faced pentagram-shaped markers. For z, use a standard-sized (i.e., default) solid blue line with standard-sized, blue-edged, green-faced square markers.

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10.2 California Imaging Center, a not-for-profit business, is evaluating the purchase of new diagnostic equipment. The equipment, which costs $600,000 has an expected life of five years and an estimated salvage value of $200,000 at that time. The equipment is expected to be used 15 times a day for 250 days a year for each year of the project’s life. On average, each procedure is expected to generate $80 in cash collections during the first year of use. Thus, net revenues for Year 1 are estimated at 15 X 250 X $80 =$300,000. Labor and maintenance costs are expected to be $100,000 during the first year of operation, while utilities will cost another $10,000 and cash overhead will increase by $5,000 in Year 1. The cost for expendable supplies is expected to average $5 per procedure during the first year. All costs and revenues are expected to increase at 5 percent inflation rate after the first year. The center’s corporate cost of capital is 10 percent. a. Estimate the project’s net cash flows over its five-year estimated life. (hint: use the following format as a guide.) Year 0 1 2 3 4 5 Equipment Cost Net revenues Less: labor/maintenance costs Utilities cost Supplies Incremental overhead Operating income Equipment salvage value Net cash flow b. What are the project’s NPV and IRR? (Assume for now that the project has average risk.) c. Assume the project is assessed to have high risk and California Imaging Center adds or subtracts 3 percentage points to adjust for project risk. Now, what is the project’s NPV? Does the risk assessment change how the project’s IRR is interpreted?

10.2 California Imaging Center, a not-for-profit business, is evaluating the purchase of new diagnostic equipment. The equipment, which costs $600,000 has an expected life of five years and an estimated salvage value of $200,000 at that time. The equipment is expected to be used 15 times a day for 250 days a year for each year of the project’s life. On average, each procedure is expected to generate $80 in cash collections during the first year of use. Thus, net revenues for Year 1 are estimated at 15 X 250 X $80 =$300,000. Labor and maintenance costs are expected to be $100,000 during the first year of operation, while utilities will cost another $10,000 and cash overhead will increase by $5,000 in Year 1. The cost for expendable supplies is expected to average $5 per procedure during the first year. All costs and revenues are expected to increase at 5 percent inflation rate after the first year. The center’s corporate cost of capital is 10 percent. a. Estimate the project’s net cash flows over its five-year estimated life. (hint: use the following format as a guide.) Year 0 1 2 3 4 5 Equipment Cost Net revenues Less: labor/maintenance costs Utilities cost Supplies Incremental overhead Operating income Equipment salvage value Net cash flow b. What are the project’s NPV and IRR? (Assume for now that the project has average risk.) c. Assume the project is assessed to have high risk and California Imaging Center adds or subtracts 3 percentage points to adjust for project risk. Now, what is the project’s NPV? Does the risk assessment change how the project’s IRR is interpreted?

info@checkyourstudy.cominfo@checkyourstudy.com 10.2 California Imaging Center, a not-for-profit business, is evaluating … Read More...
1- At your university, students can take more than one class, and each class can have more than one student. This is an example of what kind of relationship? one-to-one one-to-many many-to-one many-to-many some-to-many 2- A _____ is a logical grouping of related records. byte field record file database 3- When customers access a website and make purchases, they generate _____. tracking cookies information clickstream data web data hyperlink data 4- You have moved to a different apartment, but your electricity bill continues to be sent to your old address. The post office in your town has which problem with its data management? Data redundancy Data inconsistency Data isolation Data security Data dependence 5- Data ___________ ensures applications cannot access data associated with other applications. Hermitting inconsistency isolation redundancy 6- True or false: The primary key is a field that uniquely and completely identifies a record. True False 7- A _____ represents a single character, such as a letter, number, or symbol. byte field record file database 8- A _____ is a logical grouping of characters into a word, a small group of words, or a complete number. byte field record file database 9- A _____ is a logical grouping of related fields. byte field record file database 10 – _____ are fields in a record that have some identifying information but typically do not identify the record with complete accuracy. Primary keys Secondary keys Duplicate keys Attribute keys Record keys

1- At your university, students can take more than one class, and each class can have more than one student. This is an example of what kind of relationship? one-to-one one-to-many many-to-one many-to-many some-to-many 2- A _____ is a logical grouping of related records. byte field record file database 3- When customers access a website and make purchases, they generate _____. tracking cookies information clickstream data web data hyperlink data 4- You have moved to a different apartment, but your electricity bill continues to be sent to your old address. The post office in your town has which problem with its data management? Data redundancy Data inconsistency Data isolation Data security Data dependence 5- Data ___________ ensures applications cannot access data associated with other applications. Hermitting inconsistency isolation redundancy 6- True or false: The primary key is a field that uniquely and completely identifies a record. True False 7- A _____ represents a single character, such as a letter, number, or symbol. byte field record file database 8- A _____ is a logical grouping of characters into a word, a small group of words, or a complete number. byte field record file database 9- A _____ is a logical grouping of related fields. byte field record file database 10 – _____ are fields in a record that have some identifying information but typically do not identify the record with complete accuracy. Primary keys Secondary keys Duplicate keys Attribute keys Record keys

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A company produces bag, each of which could be sold for$150. It has a fixed monthly cost of $13,000 and a variable cost of $20 per bag produced. A. Determine the company monthly total cost function B. determine the company’s monthly revenue function C determine the company’s monthly total profit function D how many bag must the company produce to break even E how many bags must the company produce to generate $26,000 in profit? Compute A log 100 B log 1000 C log2 8 D log5. 25 E log 0.01 F log 1 G loga a

A company produces bag, each of which could be sold for$150. It has a fixed monthly cost of $13,000 and a variable cost of $20 per bag produced. A. Determine the company monthly total cost function B. determine the company’s monthly revenue function C determine the company’s monthly total profit function D how many bag must the company produce to break even E how many bags must the company produce to generate $26,000 in profit? Compute A log 100 B log 1000 C log2 8 D log5. 25 E log 0.01 F log 1 G loga a

This is about the vibrations in aircraft wings Please answer the followings: 1-How many degrees of freedom are there? Is the forcing at a point or distributed? If distributed, how to simplify to a single degree-of-freedom formulation? 2-derivation of equations of motion 3- sketch of model system including where is stiffness/damping/direction of vibration 4- dynamic parameters (initial conditions, external excitation parameters like frequency and magnitude) 5- discuss assumptions/simplifications & justification anticipated results based on physics/background **The stiffness of this model can be considered as a bending stifness where k=(3EI/L^3) 6-overview of results 7- accurate description of how results were determined (analytical solutions, numerical integration, type of numerical integration) 8- displacement plot in time (appropriate length of time to show relevant dynamics) 9- discussion of results accuracy: transient vs steady state, resolution if using numerical integration 10- additional considerations (ex. How results vary for varying model or excitation parameters) EYMA 1 Homework: DUE ON 13, 2017 by 4:00 pm Watch the documentary, “White People”, below. What are your reactions? Do racial and cultural ideas, conflicts, attitudes, etc. play out the way they were depicted in the documentary? Briefly explain your thoughts. Then, breifly describe one challenge you have experienced when communicating with someone of a different cultural group. Be honest, but not critical. What was most discomforting about the interaction? Lastly, discuss the factors that make it difficult to understand the norms and values of a culture. How can you prepare yourself to understand and/or adapt to a different culture? https://youtu.be/_zjj1PmJcRM Answer every question/inquiry stated, thoughtfully and completely. Assignment responses need to be at least 250 words, typed, in 12pt Times New Roman font, using APA format for citations, edited and proof read for grammar. Project topic List 1. Design a Doubly Fed Induction Machine (DFIM) wind turbine system The system size is targeted at 200 kW. The system must generate electricity for a variable speed wind profile and provide the generated power to the grid at 60Hz. Each group needs to submit only one project report. The report should have the following items: – Abstract – One-page introduction – Simulation results – Discussion – Conclusions An essay about the Novel (Never Let Me Go). the subject is about freedom, with freedom theme and example from the book. For example, the kids life in Hailsham and every place they go to and how their freedom is limited according to a normal human. introduction that have (opener and bridge and thesis). 600 words Assignment Flextronics will be a case study used at different times throughout the workshop. The case will be used to illustrate a number of techniques and learning points; it will begin by asking for: ? Part One: an assessment of the electronics manufacturing services industry ? Part Two: the company’s business strategy Analytical Exercise? (Google) READ: BBC: Syria War: G7 Rejects Sanctions on Russia after “Chemical Attack” (April 11, 2017) 1. Nancy’s plans for a square garden include an area of (x2 + 12x + 36) m2. Write expressions for the length and width of this square garden. 2. The plans for the square garden shows a length of 12 m. What is the width of the square garden? Using the area from problem 1, what is the value of x? What is the total area of this square garden?

This is about the vibrations in aircraft wings Please answer the followings: 1-How many degrees of freedom are there? Is the forcing at a point or distributed? If distributed, how to simplify to a single degree-of-freedom formulation? 2-derivation of equations of motion 3- sketch of model system including where is stiffness/damping/direction of vibration 4- dynamic parameters (initial conditions, external excitation parameters like frequency and magnitude) 5- discuss assumptions/simplifications & justification anticipated results based on physics/background **The stiffness of this model can be considered as a bending stifness where k=(3EI/L^3) 6-overview of results 7- accurate description of how results were determined (analytical solutions, numerical integration, type of numerical integration) 8- displacement plot in time (appropriate length of time to show relevant dynamics) 9- discussion of results accuracy: transient vs steady state, resolution if using numerical integration 10- additional considerations (ex. How results vary for varying model or excitation parameters) EYMA 1 Homework: DUE ON 13, 2017 by 4:00 pm Watch the documentary, “White People”, below. What are your reactions? Do racial and cultural ideas, conflicts, attitudes, etc. play out the way they were depicted in the documentary? Briefly explain your thoughts. Then, breifly describe one challenge you have experienced when communicating with someone of a different cultural group. Be honest, but not critical. What was most discomforting about the interaction? Lastly, discuss the factors that make it difficult to understand the norms and values of a culture. How can you prepare yourself to understand and/or adapt to a different culture? https://youtu.be/_zjj1PmJcRM Answer every question/inquiry stated, thoughtfully and completely. Assignment responses need to be at least 250 words, typed, in 12pt Times New Roman font, using APA format for citations, edited and proof read for grammar. Project topic List 1. Design a Doubly Fed Induction Machine (DFIM) wind turbine system The system size is targeted at 200 kW. The system must generate electricity for a variable speed wind profile and provide the generated power to the grid at 60Hz. Each group needs to submit only one project report. The report should have the following items: – Abstract – One-page introduction – Simulation results – Discussion – Conclusions An essay about the Novel (Never Let Me Go). the subject is about freedom, with freedom theme and example from the book. For example, the kids life in Hailsham and every place they go to and how their freedom is limited according to a normal human. introduction that have (opener and bridge and thesis). 600 words Assignment Flextronics will be a case study used at different times throughout the workshop. The case will be used to illustrate a number of techniques and learning points; it will begin by asking for: ? Part One: an assessment of the electronics manufacturing services industry ? Part Two: the company’s business strategy Analytical Exercise? (Google) READ: BBC: Syria War: G7 Rejects Sanctions on Russia after “Chemical Attack” (April 11, 2017) 1. Nancy’s plans for a square garden include an area of (x2 + 12x + 36) m2. Write expressions for the length and width of this square garden. 2. The plans for the square garden shows a length of 12 m. What is the width of the square garden? Using the area from problem 1, what is the value of x? What is the total area of this square garden?

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Biomedical Signal and Image Processing (4800_420_001) Assigned on September 12th, 2017 Assignment 4 – Noise and Correlation 1. If a signal is measured as 2.5 V and the noise is 28 mV (28 × 10−3 V), what is the SNR in dB? 2. A single sinusoidal signal is found with some noise. If the RMS value of the noise is 0.5 V and the SNR is 10 dB, what is the RMS amplitude of the sinusoid? 3. The file signal_noise.mat contains a variable x that consists of a 1.0-V peak sinusoidal signal buried in noise. What is the SNR for this signal and noise? Assume that the noise RMS is much greater than the signal RMS. Note: “signal_noise.mat” and other files used in these assignments can be downloaded from the content area of Brightspace, within the “Data Files for Exercises” folder. These files can be opened in Matlab by copying into the active folder and double-clicking on the file or using the Matlab load command using the format: load(‘signal_noise.mat’). To discover the variables within the files use the Matlab who command. 4. An 8-bit ADC converter that has an input range of ±5 V is used to convert a signal that ranges between ±2 V. What is the SNR of the input if the input noise equals the quantization noise of the converter? Hint: Refer to Equation below to find the quantization noise: 5. The file filter1.mat contains the spectrum of a fourth-order lowpass filter as variable x in dB. The file also contains the corresponding frequencies of x in variable freq. Plot the spectrum of this filter both as dB versus log frequency and as linear amplitude versus linear frequency. The frequency axis should range between 10 and 400 Hz in both plots. Hint: Use Equation below to convert: Biomedical Signal and Image Processing (4800_420_001) Assigned on September 12th, 2017 6. Generate one cycle of the square wave similar to the one shown below in a 500-point MATLAB array. Determine the RMS value of this waveform. [Hint: When you take the square of the data array, be sure to use a period before the up arrow so that MATLAB does the squaring point-by-point (i.e., x.^2).]. 7. A resistor produces 10 μV noise (i.e., 10 × 10−6 V noise) when the room temperature is 310 K and the bandwidth is 1 kHz (i.e., 1000 Hz). What current noise would be produced by this resistor? 8. A 3-ma current flows through both a diode (i.e., a semiconductor) and a 20,000-Ω (i.e., 20-kΩ) resistor. What is the net current noise, in? Assume a bandwidth of 1 kHz (i.e., 1 × 103 Hz). Which of the two components is responsible for producing the most noise? 9. Determine if the two signals, x and y, in file correl1.mat are correlated by checking the angle between them. 10. Modify the approach used in Practice Problem 3 to find the angle between short signals: Do not attempt to plot these vectors as it would require a 6-dimensional plot!

Biomedical Signal and Image Processing (4800_420_001) Assigned on September 12th, 2017 Assignment 4 – Noise and Correlation 1. If a signal is measured as 2.5 V and the noise is 28 mV (28 × 10−3 V), what is the SNR in dB? 2. A single sinusoidal signal is found with some noise. If the RMS value of the noise is 0.5 V and the SNR is 10 dB, what is the RMS amplitude of the sinusoid? 3. The file signal_noise.mat contains a variable x that consists of a 1.0-V peak sinusoidal signal buried in noise. What is the SNR for this signal and noise? Assume that the noise RMS is much greater than the signal RMS. Note: “signal_noise.mat” and other files used in these assignments can be downloaded from the content area of Brightspace, within the “Data Files for Exercises” folder. These files can be opened in Matlab by copying into the active folder and double-clicking on the file or using the Matlab load command using the format: load(‘signal_noise.mat’). To discover the variables within the files use the Matlab who command. 4. An 8-bit ADC converter that has an input range of ±5 V is used to convert a signal that ranges between ±2 V. What is the SNR of the input if the input noise equals the quantization noise of the converter? Hint: Refer to Equation below to find the quantization noise: 5. The file filter1.mat contains the spectrum of a fourth-order lowpass filter as variable x in dB. The file also contains the corresponding frequencies of x in variable freq. Plot the spectrum of this filter both as dB versus log frequency and as linear amplitude versus linear frequency. The frequency axis should range between 10 and 400 Hz in both plots. Hint: Use Equation below to convert: Biomedical Signal and Image Processing (4800_420_001) Assigned on September 12th, 2017 6. Generate one cycle of the square wave similar to the one shown below in a 500-point MATLAB array. Determine the RMS value of this waveform. [Hint: When you take the square of the data array, be sure to use a period before the up arrow so that MATLAB does the squaring point-by-point (i.e., x.^2).]. 7. A resistor produces 10 μV noise (i.e., 10 × 10−6 V noise) when the room temperature is 310 K and the bandwidth is 1 kHz (i.e., 1000 Hz). What current noise would be produced by this resistor? 8. A 3-ma current flows through both a diode (i.e., a semiconductor) and a 20,000-Ω (i.e., 20-kΩ) resistor. What is the net current noise, in? Assume a bandwidth of 1 kHz (i.e., 1 × 103 Hz). Which of the two components is responsible for producing the most noise? 9. Determine if the two signals, x and y, in file correl1.mat are correlated by checking the angle between them. 10. Modify the approach used in Practice Problem 3 to find the angle between short signals: Do not attempt to plot these vectors as it would require a 6-dimensional plot!

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As a student of ECON1005, suppose you were asked to assist a co-worker in investigating whether there is an association between gender and annual salary of researchers in your country. Data was gathered from researchers in your country in your country. MINITAB was used to generate stem-and-leaf diagrams for the salaries of both the female and male researchers. See Exhibit 1 below. Exhibit 1 Stem-and-Leaf Display: Salary Female, Salary Male Stem-and-leaf of Salary Female N = 15 Leaf Unit = 1000.0 1 5 8 5 6 1345 (3) 7 148 7 8 389 4 9 2245 (a) Calculate the mean salary for both the female and the male researchers. All relevant working must be clearly shown. (b) Calculate the standard deviation of the salaries for both the female and the male researchers. All relevant working must be clearly shown. (c) Comment on your answers for parts (c) and (d), in relation to the purpose of your study, that is, the association between gender and annual salary of researchers in your country. MINITAB was used to generate box-and-whisker diagrams for the salaries of both the female and male researchers. See Exhibit 2 below. Exhibit 2 (d) With reference to the box-and-whisker diagrams, compare the salaries of the researchers selected in your sample, by gender. Ensure that you comment on the skewness, the median, the interquartile range, the minimum and the maximum values of both diagrams. MINITAB was used to generate the descriptive statistics for all the 35 researchers selected in the sample. See Exhibit 3 below. Exhibit 3 Descriptive Statistics: ResearcherSalary Variable N N* Mean SE Mean TrMean StDev Minimum Q1 Median Q3 Salary 35 0 82951 2266 83200 13404 58100 74800 83800 94300 Variable Maximum Salary 104500 (e) What does TrMean represent? Comment on the value of the TrMean and show how this value was calculated. (f) For further analysis, a table is drawn showing the number of females and the number of males whose salaries were below the median salary and equal to or above the median salary. Complete the table below: Salary < $83800 Salary ? $83800 Total Female Male Total 35 (g) Using your table in part (h), determine the probability that a randomly selected researcher from your sample, is a female OR has a salary < $83800. (h) Using your table in part (h), determine the probability that a randomly selected researcher from your sample, is a female AND has a salary < $83800. (i) Given that a randomly selected researcher from your sample is a female, what is the probability that her annual salary is < $83800? (j) Are the events “female researcher” and “salary < $83800” mutually independent events? Support your answer with relevant calculations or explanations.

As a student of ECON1005, suppose you were asked to assist a co-worker in investigating whether there is an association between gender and annual salary of researchers in your country. Data was gathered from researchers in your country in your country. MINITAB was used to generate stem-and-leaf diagrams for the salaries of both the female and male researchers. See Exhibit 1 below. Exhibit 1 Stem-and-Leaf Display: Salary Female, Salary Male Stem-and-leaf of Salary Female N = 15 Leaf Unit = 1000.0 1 5 8 5 6 1345 (3) 7 148 7 8 389 4 9 2245 (a) Calculate the mean salary for both the female and the male researchers. All relevant working must be clearly shown. (b) Calculate the standard deviation of the salaries for both the female and the male researchers. All relevant working must be clearly shown. (c) Comment on your answers for parts (c) and (d), in relation to the purpose of your study, that is, the association between gender and annual salary of researchers in your country. MINITAB was used to generate box-and-whisker diagrams for the salaries of both the female and male researchers. See Exhibit 2 below. Exhibit 2 (d) With reference to the box-and-whisker diagrams, compare the salaries of the researchers selected in your sample, by gender. Ensure that you comment on the skewness, the median, the interquartile range, the minimum and the maximum values of both diagrams. MINITAB was used to generate the descriptive statistics for all the 35 researchers selected in the sample. See Exhibit 3 below. Exhibit 3 Descriptive Statistics: ResearcherSalary Variable N N* Mean SE Mean TrMean StDev Minimum Q1 Median Q3 Salary 35 0 82951 2266 83200 13404 58100 74800 83800 94300 Variable Maximum Salary 104500 (e) What does TrMean represent? Comment on the value of the TrMean and show how this value was calculated. (f) For further analysis, a table is drawn showing the number of females and the number of males whose salaries were below the median salary and equal to or above the median salary. Complete the table below: Salary < $83800 Salary ? $83800 Total Female Male Total 35 (g) Using your table in part (h), determine the probability that a randomly selected researcher from your sample, is a female OR has a salary < $83800. (h) Using your table in part (h), determine the probability that a randomly selected researcher from your sample, is a female AND has a salary < $83800. (i) Given that a randomly selected researcher from your sample is a female, what is the probability that her annual salary is < $83800? (j) Are the events “female researcher” and “salary < $83800” mutually independent events? Support your answer with relevant calculations or explanations.

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