• Question 1 Which of the following are considered application software packages?: Answers: Word processing programs Operating systems System utilities System development programs

• Question 1 Which of the following are considered application software packages?: Answers: Word processing programs Operating systems System utilities System development programs

Question 1   Which of the following are considered application … Read More...
Q1 A machining center in a local manufacturing company has five jobs to complete. The jobs are labeled 1, 2, 3, 4, and 5 based on the order they entered the shop. Your manager has asked you to compare two different job sequences to determine the best order for processing the jobs – First-In, First-Out (FIFO) and Shortest Processing Time (SPT). Compare the two sequences. Which sequence would you recommend and why? Be sure to include a variety of measures (average completion time, lateness, etc.) to compare the two sequencing rules. Include all calculations in your response q2 You work for a healthcare insurance company as an industrial engineer. As part of the company’s customer service department, there is a call center that responds to customer questions by phone. Your manager has asked you to perform an analysis of some data that the call center has collected over the last two years in an effort to determine how many workers are needed. In particular your manager wants to find out if there is a relationship between how long it takes to answer a call (independent variable) and whether or not customers will hang up (dependent variable). Is there a linear relationship between these two variables? Include a graph and analysis to support your opinion. If the goal of the call center is to have fewer than 15% of calls abandoned, how quickly must the call center respond? Learning Outcome #2. Data for Question 3 Average Answer Speed = Average number of seconds to answer an incoming call during the week % abandoned = % of calls that are abandoned (hang up) before being answered during the week. let me know if you can do excel work so I can send you the rest of the information and date

Q1 A machining center in a local manufacturing company has five jobs to complete. The jobs are labeled 1, 2, 3, 4, and 5 based on the order they entered the shop. Your manager has asked you to compare two different job sequences to determine the best order for processing the jobs – First-In, First-Out (FIFO) and Shortest Processing Time (SPT). Compare the two sequences. Which sequence would you recommend and why? Be sure to include a variety of measures (average completion time, lateness, etc.) to compare the two sequencing rules. Include all calculations in your response q2 You work for a healthcare insurance company as an industrial engineer. As part of the company’s customer service department, there is a call center that responds to customer questions by phone. Your manager has asked you to perform an analysis of some data that the call center has collected over the last two years in an effort to determine how many workers are needed. In particular your manager wants to find out if there is a relationship between how long it takes to answer a call (independent variable) and whether or not customers will hang up (dependent variable). Is there a linear relationship between these two variables? Include a graph and analysis to support your opinion. If the goal of the call center is to have fewer than 15% of calls abandoned, how quickly must the call center respond? Learning Outcome #2. Data for Question 3 Average Answer Speed = Average number of seconds to answer an incoming call during the week % abandoned = % of calls that are abandoned (hang up) before being answered during the week. let me know if you can do excel work so I can send you the rest of the information and date

No expert has answered this question yet. You can browse … Read More...
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!

Whatsapp +919911743277  
1. A biological psychologist would be most interested in conducting research on the relationship between A) neurotransmitters and depression. B) bone density and body size. C) self-esteem and popularity. D) genetics and eye color. 2. The function of dendrites is to A) receive incoming signals from other neurons. B) release neurotransmitters into the spatial junctions between neurons. C) coordinate the activation of the parasympathetic and sympathetic nervous systems. D) control pain through the release of opiate-like chemicals into the brain. 3. Sensory neurons are located in the A) thalamus. B) reticular formation. C) peripheral nervous system. D) sensory cortex. 4. The part of the brainstem that controls heartbeat and breathing is called the A) cerebellum. B) medulla. C) amygdala. D) thalamus. 5. After flying from California to New York, Arthur experienced a restless, sleepless night. His problem was most likely caused by a disruption of his normal A) change blindness. B) circadian rhythm. C) hypnagogic sensations. D) sleep paralysis. 6. Mr. Oates always sleeps restlessly, snorting and gasping throughout the night. It is most likely that Mr. Oates suffers from A) sleep apnea. B) narcolepsy. C) night terrors. D) insomnia. 7. A condition in which a person can respond to a visual stimulus without consciously experiencing it is known as A) narcolepsy. B) change blindness. C) REM rebound. D) blindsight. 8. Consciousness is to unconsciousness as ________ is to ________. A) tolerance; withdrawal B) sequential processing; parallel processing C) latent content; manifest content D) delta wave; alpha wave 9. Auditory stimulation is first processed in the ________ lobes. A) occipital B) temporal C) frontal D) parietal 10. Acetylcholine is a neurotransmitter that A) causes sleepiness. B) lessens physical pain. C) reduces depressed moods. D) triggers muscle contractions. 11. Which of the following is not one of the phases of the general adaptation syndrome: A) attention B) alarm reaction C) resistance D) exhaustion 12. People with Type B personality A) Are at a greater risk for heart disease B) Tend to be more easy-going than those with Type A personality C) Are at a greater risk for depression D) Tend to be more motivated to do well than those with Type A personality 13. Which is an example of problem-focused coping A) Studying harder for an exam after you got a bad grade on the first one B) Trying not to think about how angry you are C) Distracting yourself by watching a funny movie D) Talking about how upset you are with your friend 14. People with an external locus of think that A) events are largely outside of their control B) too much personal freedom decreases life satisfaction. C) individuals can influence their own outcomes in life. D) self-control gets permanently weaker with age 15. Which of the following is a benefit of social support A) improved immune system functioning B) decreased blood pressure C) improved health D) all of the above

1. A biological psychologist would be most interested in conducting research on the relationship between A) neurotransmitters and depression. B) bone density and body size. C) self-esteem and popularity. D) genetics and eye color. 2. The function of dendrites is to A) receive incoming signals from other neurons. B) release neurotransmitters into the spatial junctions between neurons. C) coordinate the activation of the parasympathetic and sympathetic nervous systems. D) control pain through the release of opiate-like chemicals into the brain. 3. Sensory neurons are located in the A) thalamus. B) reticular formation. C) peripheral nervous system. D) sensory cortex. 4. The part of the brainstem that controls heartbeat and breathing is called the A) cerebellum. B) medulla. C) amygdala. D) thalamus. 5. After flying from California to New York, Arthur experienced a restless, sleepless night. His problem was most likely caused by a disruption of his normal A) change blindness. B) circadian rhythm. C) hypnagogic sensations. D) sleep paralysis. 6. Mr. Oates always sleeps restlessly, snorting and gasping throughout the night. It is most likely that Mr. Oates suffers from A) sleep apnea. B) narcolepsy. C) night terrors. D) insomnia. 7. A condition in which a person can respond to a visual stimulus without consciously experiencing it is known as A) narcolepsy. B) change blindness. C) REM rebound. D) blindsight. 8. Consciousness is to unconsciousness as ________ is to ________. A) tolerance; withdrawal B) sequential processing; parallel processing C) latent content; manifest content D) delta wave; alpha wave 9. Auditory stimulation is first processed in the ________ lobes. A) occipital B) temporal C) frontal D) parietal 10. Acetylcholine is a neurotransmitter that A) causes sleepiness. B) lessens physical pain. C) reduces depressed moods. D) triggers muscle contractions. 11. Which of the following is not one of the phases of the general adaptation syndrome: A) attention B) alarm reaction C) resistance D) exhaustion 12. People with Type B personality A) Are at a greater risk for heart disease B) Tend to be more easy-going than those with Type A personality C) Are at a greater risk for depression D) Tend to be more motivated to do well than those with Type A personality 13. Which is an example of problem-focused coping A) Studying harder for an exam after you got a bad grade on the first one B) Trying not to think about how angry you are C) Distracting yourself by watching a funny movie D) Talking about how upset you are with your friend 14. People with an external locus of think that A) events are largely outside of their control B) too much personal freedom decreases life satisfaction. C) individuals can influence their own outcomes in life. D) self-control gets permanently weaker with age 15. Which of the following is a benefit of social support A) improved immune system functioning B) decreased blood pressure C) improved health D) all of the above

The correct answer has an “*” in front of it. … Read More...
. Read the article on Lean Production at Jaguar (when it used to be part of Ford) which is provided at the link: http://businesscasestudies.co.uk/jaguar/lean-production/introduction.html#axzz2SrprdGnx Once you read this case study answer the following questions: (a) A generic pharmaceutical company wanted to implement Lean Manufacturing in their manufacturing process. They hired a project manager X from the automotive industry who had extensive experience implementing lean. Extract some lessons learned and best practices from the Jaguar case study that pharmaceutical company could implement at their plant once the new project manager in charge of lean came onboard. Explain each point in detail. Also, state any additional steps that project manager X could take to implement lean at pharmaceutical company. [10 points].

. Read the article on Lean Production at Jaguar (when it used to be part of Ford) which is provided at the link: http://businesscasestudies.co.uk/jaguar/lean-production/introduction.html#axzz2SrprdGnx Once you read this case study answer the following questions: (a) A generic pharmaceutical company wanted to implement Lean Manufacturing in their manufacturing process. They hired a project manager X from the automotive industry who had extensive experience implementing lean. Extract some lessons learned and best practices from the Jaguar case study that pharmaceutical company could implement at their plant once the new project manager in charge of lean came onboard. Explain each point in detail. Also, state any additional steps that project manager X could take to implement lean at pharmaceutical company. [10 points].

1) Transforming patterns of working relationships across all verticals The … Read More...
A DBMS query language is designed to: Answers: Support information systems professionals in the development of complex application software Support end users who wish to obtain ad hoc reports Provide efficient batch mode processing of the database Specify the content, relationships, and structure of a database

A DBMS query language is designed to: Answers: Support information systems professionals in the development of complex application software Support end users who wish to obtain ad hoc reports Provide efficient batch mode processing of the database Specify the content, relationships, and structure of a database

A DBMS query language is designed to: Answers: Support information … Read More...
Project Four: Revisiting English 1010 (Literacy, Language, and Culture: An Exploration of the African American Experience) The MultiMedia Reflective Portfolio Project Overview This project will provide us with the opportunity to use a combination of textual, digital, and oral tools to: 1) reflect on and display what we have learned about African American literacy, language, and culture; and 2) reflect on and display what we have learned about the process of composing a literacy narrative, informative summary, media analysis, and multimedia reflective portfolio project. Ultimately, this project will provide us with the opportunity to use multimedia tools and applications to reflect on and display our experience as knowledge users and knowledge makers in this course (specifically as it relates to the English 1010 Learning Outcomes). ___________________________________________________________________ Introduction/Rationale/Assignment Prompt: This reflective assignment, which is the last major assignment of the semester, consists of two parts: Part One Part One consists of a 2-3 page reflective essay in which you reflect on and display: (1) what you learned about African American literacy, language, and culture; and (2) what you learned about the process of composing a literacy narrative, informative summary, media analysis, and multimedia reflective portfolio project–specifically as the process relates to the Learning Outcomes (Reading, Writing, Reflection, and Technology Use). To do so, you must look back over the work you produced during the semester in order to locate and discuss your learning and accomplishments in these areas. While your discussion of achievements with respect to ENG 1010 Learning Outcomes is perhaps the most important goal in the Reflective Essay, the written expression of these achievements can be strengthened when it is integrated into a broader narrative that describes where you are coming from and who you are as a student. In this narrative, you may discuss, for example, how you learned and used various reading strategies in the course, or you may describe, for example, how your ability to use composition and course management technologies, like Word and Blackboard, increased. You may also address, as appropriate, how your culture, identity, or background shaped your experiences as a student in ENG 1010. You may wish to discuss, for example, some of the following issues. • Transition to college and the larger first-year experience • Negotiation of a new identity as college student (how you adjusted; how you handled it) • Membership in groups historically underrepresented in college • Language diversity • Managing life circumstances to be able to give enough time and energy to academic work In sum, the Reflective Essay should make claims about your learning and accomplishments with respect to the two areas identified above. Essentially, the reflective essay should demonstrate what you have learned and what you can do as a result of your work in ENG 1010. In this way, a successful Reflective Essay will inspire confidence that you are prepared to move forward into your next composition courses, beginning with ENG 1020, and into the larger academic discourse community. Part Two Part Two consists of an electronic multimedia portfolio containing 3-5 selected pieces of the work you produced this semester (essay topic proposals, reading responses, essay outlines, essay first or final drafts, in-class assignments, etc.) that you can use as evidence of your learning and accomplishments and to support the claims you made in your reflective essay. ___________________________________________________________________ English 1010 Learning Outcomes Reading ● Develop reading strategies to explain, paraphrase, and summarize college-level material. ● Analyze college-level material to identify evidence that supports broader claims. Writing ● Plan and compose a well-organized thesis-driven text that engages with college-level material and is supported by relevant and sufficient evidence. ● Develop a flexible revision process that incorporates feedback to rewrite multiple drafts of a text for clarity (e.g. argument, organization, support, and audience awareness). Reflection ● Use reflective writing to evaluate and revise writing processes and drafts ● Use reflective writing to assess and articulate skill development in relation to course learning outcomes. Technology Use ● Navigate institutional web-based interfaces, such as course websites, university email, and Blackboard Learn™, to find, access and submit course material. ● Use computer-based composition technologies, including word processing software (e.g. Microsoft Word, PowerPoint), to compose college-level texts. ● Use computer-based composition technologies to read and annotate course readings and texts authored by students (e.g. peer review). Your Final Draft Should: • meet the requirements as outlined in the “Introduction/Rationale/Assignment Prompt” section above. Points for This Project • First Draft: 20 Points • Final Draft: 130 Points • Oral Presentation: 30 Points Refer to the Course Schedule (Syllabus) for Assignment Due Dates. _______________________________________________________________ Evaluation: You will be evaluated based on content, organization, and mechanics.

Project Four: Revisiting English 1010 (Literacy, Language, and Culture: An Exploration of the African American Experience) The MultiMedia Reflective Portfolio Project Overview This project will provide us with the opportunity to use a combination of textual, digital, and oral tools to: 1) reflect on and display what we have learned about African American literacy, language, and culture; and 2) reflect on and display what we have learned about the process of composing a literacy narrative, informative summary, media analysis, and multimedia reflective portfolio project. Ultimately, this project will provide us with the opportunity to use multimedia tools and applications to reflect on and display our experience as knowledge users and knowledge makers in this course (specifically as it relates to the English 1010 Learning Outcomes). ___________________________________________________________________ Introduction/Rationale/Assignment Prompt: This reflective assignment, which is the last major assignment of the semester, consists of two parts: Part One Part One consists of a 2-3 page reflective essay in which you reflect on and display: (1) what you learned about African American literacy, language, and culture; and (2) what you learned about the process of composing a literacy narrative, informative summary, media analysis, and multimedia reflective portfolio project–specifically as the process relates to the Learning Outcomes (Reading, Writing, Reflection, and Technology Use). To do so, you must look back over the work you produced during the semester in order to locate and discuss your learning and accomplishments in these areas. While your discussion of achievements with respect to ENG 1010 Learning Outcomes is perhaps the most important goal in the Reflective Essay, the written expression of these achievements can be strengthened when it is integrated into a broader narrative that describes where you are coming from and who you are as a student. In this narrative, you may discuss, for example, how you learned and used various reading strategies in the course, or you may describe, for example, how your ability to use composition and course management technologies, like Word and Blackboard, increased. You may also address, as appropriate, how your culture, identity, or background shaped your experiences as a student in ENG 1010. You may wish to discuss, for example, some of the following issues. • Transition to college and the larger first-year experience • Negotiation of a new identity as college student (how you adjusted; how you handled it) • Membership in groups historically underrepresented in college • Language diversity • Managing life circumstances to be able to give enough time and energy to academic work In sum, the Reflective Essay should make claims about your learning and accomplishments with respect to the two areas identified above. Essentially, the reflective essay should demonstrate what you have learned and what you can do as a result of your work in ENG 1010. In this way, a successful Reflective Essay will inspire confidence that you are prepared to move forward into your next composition courses, beginning with ENG 1020, and into the larger academic discourse community. Part Two Part Two consists of an electronic multimedia portfolio containing 3-5 selected pieces of the work you produced this semester (essay topic proposals, reading responses, essay outlines, essay first or final drafts, in-class assignments, etc.) that you can use as evidence of your learning and accomplishments and to support the claims you made in your reflective essay. ___________________________________________________________________ English 1010 Learning Outcomes Reading ● Develop reading strategies to explain, paraphrase, and summarize college-level material. ● Analyze college-level material to identify evidence that supports broader claims. Writing ● Plan and compose a well-organized thesis-driven text that engages with college-level material and is supported by relevant and sufficient evidence. ● Develop a flexible revision process that incorporates feedback to rewrite multiple drafts of a text for clarity (e.g. argument, organization, support, and audience awareness). Reflection ● Use reflective writing to evaluate and revise writing processes and drafts ● Use reflective writing to assess and articulate skill development in relation to course learning outcomes. Technology Use ● Navigate institutional web-based interfaces, such as course websites, university email, and Blackboard Learn™, to find, access and submit course material. ● Use computer-based composition technologies, including word processing software (e.g. Microsoft Word, PowerPoint), to compose college-level texts. ● Use computer-based composition technologies to read and annotate course readings and texts authored by students (e.g. peer review). Your Final Draft Should: • meet the requirements as outlined in the “Introduction/Rationale/Assignment Prompt” section above. Points for This Project • First Draft: 20 Points • Final Draft: 130 Points • Oral Presentation: 30 Points Refer to the Course Schedule (Syllabus) for Assignment Due Dates. _______________________________________________________________ Evaluation: You will be evaluated based on content, organization, and mechanics.

No expert has answered this question yet. You can browse … Read More...
Which of the following is a correct statement about mRNA? mRNA is transcribed from DNA in the cytoplasm. Segments of mRNA that code for protein are removed before translation. mRNA moves from the nucleus to the cytoplasm following RNA processing. mRNA includes a cap that consists of extra adenine nucleotides. mRNA binds directly to amino acids during translation

Which of the following is a correct statement about mRNA? mRNA is transcribed from DNA in the cytoplasm. Segments of mRNA that code for protein are removed before translation. mRNA moves from the nucleus to the cytoplasm following RNA processing. mRNA includes a cap that consists of extra adenine nucleotides. mRNA binds directly to amino acids during translation

mRNA moves from the nucleus to the cytoplasm following RNA … Read More...
Lab on Confidence Intervals The story: Studies have shown that the random variable X, the processing time required to do a multiplication on a new 3-D computer, is normally distributed with mean and standard deviation 2 microseconds. A random sample of 16 observations is to be taken (i.e. 16 random multiplications will be performed and the time that it takes to perform each one of them will be annotated). The sample mean will be calculated. Part 1- The very basics 1. Before we collect the random sample, what can we say about the sampling distribution of ? 2. Before we collect the random sample, what is the probability that the sample mean will have a value that is greater than or equal to , and less than or equal to In other words, what is the probability that the sample mean is within 0.98 microseconds ( ) of the true (unknown) mean time? 3. A random sample was taken (i.e.16 multiplications were done) and the processing times were as follows: 42.65 45.15 39.32 44.44 41.63 41.54 41.59 45.68 46.50 41.35 44.37 40.27 43.87 43.79 43.28 40.70 Round the times to the nearest tenth (e.g. 42.65 ~ 42.6) and do the stem-and-leave display Do the stem and leaf display. Calculate the sample mean 39 40 41 42 43 44 45 46 4. Now we will use our knowledge of the value of the sample mean for this particular sample and the relationship between sample means (in general) and population mean (see questions 1 and 2 of this lab) to make an intelligent guess (estimation) of the population mean. Use the formula to calculate a 95 % confidence interval for the population mean (Show your work) ( , ) From the Minitab menu, use STAT>BASIC STATISTIC>ONE SAMPLE Z to check your calculations. Calculate the width of the confidence interval _______________ 5. Interpret the confidence interval you just found: We are 95% confident that the true mean processing time required to do a multiplication on a new 3-D computer lies between __________ and __________ microseconds. (The meaning of this is the following: Think of all the possible samples (all the possible sets of 16 multiplications) that we could have been done with this type of computer; 95% of those samples would have produced confidence intervals that contain the true mean, the other 5% would have been off)

Lab on Confidence Intervals The story: Studies have shown that the random variable X, the processing time required to do a multiplication on a new 3-D computer, is normally distributed with mean and standard deviation 2 microseconds. A random sample of 16 observations is to be taken (i.e. 16 random multiplications will be performed and the time that it takes to perform each one of them will be annotated). The sample mean will be calculated. Part 1- The very basics 1. Before we collect the random sample, what can we say about the sampling distribution of ? 2. Before we collect the random sample, what is the probability that the sample mean will have a value that is greater than or equal to , and less than or equal to In other words, what is the probability that the sample mean is within 0.98 microseconds ( ) of the true (unknown) mean time? 3. A random sample was taken (i.e.16 multiplications were done) and the processing times were as follows: 42.65 45.15 39.32 44.44 41.63 41.54 41.59 45.68 46.50 41.35 44.37 40.27 43.87 43.79 43.28 40.70 Round the times to the nearest tenth (e.g. 42.65 ~ 42.6) and do the stem-and-leave display Do the stem and leaf display. Calculate the sample mean 39 40 41 42 43 44 45 46 4. Now we will use our knowledge of the value of the sample mean for this particular sample and the relationship between sample means (in general) and population mean (see questions 1 and 2 of this lab) to make an intelligent guess (estimation) of the population mean. Use the formula to calculate a 95 % confidence interval for the population mean (Show your work) ( , ) From the Minitab menu, use STAT>BASIC STATISTIC>ONE SAMPLE Z to check your calculations. Calculate the width of the confidence interval _______________ 5. Interpret the confidence interval you just found: We are 95% confident that the true mean processing time required to do a multiplication on a new 3-D computer lies between __________ and __________ microseconds. (The meaning of this is the following: Think of all the possible samples (all the possible sets of 16 multiplications) that we could have been done with this type of computer; 95% of those samples would have produced confidence intervals that contain the true mean, the other 5% would have been off)

No expert has answered this question yet. You can browse … Read More...