Another property we use is frequency. Frequency (f) is the number of cycles per second. We measure frequency in units of Hertz, (Hz). Frequency is the inverse of the time for one complete cycle. We call the time for one complete cycle the period (T) and measure in units of time. A complete cycle includes every possible value that repeats. Based on the diagram above what is the period for one complete cycle?

## Another property we use is frequency. Frequency (f) is the number of cycles per second. We measure frequency in units of Hertz, (Hz). Frequency is the inverse of the time for one complete cycle. We call the time for one complete cycle the period (T) and measure in units of time. A complete cycle includes every possible value that repeats. Based on the diagram above what is the period for one complete cycle?

Another property we use is frequency. Frequency (f) is the … Read More...
Instructions 1. The next sheet is an example problem from the text. Select the cells at the top of the columns to see the formulas and format. 2. Columns A,B, and C are the input data. Note that the upper boundary is used. Columns D and E are used to calculate the average and sample standard deviation. Column F calculates the z value using the upper boundary (Column B), the average, and the sample standard deviation. Column G is the area (cumulative probability) under the normal curve to the left of the z value in the same manner as Table A. Column H is the area [probability] for each cell. Note that the formula for Row 3 is different than the rest of the rows. Column I is the expected frequency for each cell. It equals the value in Column H times the total number of observed values (110). Column J is the chi-squared value which can be compared to a chi-squared table to determine the observed values (110). This column is really not necessary because the program calculates the observed values (110) and performs the chi-squared test at I21 and K21. Column K is an adjustment to bring the total number of observed values to 110. The chi-squared test for the adjustment gives a probability of 0.971that the distribution is normal. 3. The following sheet, called template, should be copied before using the program. This activity is accomplished by selecting EDIT, selecting MOVE OR COPY SHEET, selecting CREATE A COPY, and locating the new sheet, called template (2), in the dialog box. 4. The template is designed for 9 cells. If more or less cells are required, the appropriate changes must be made.

## Instructions 1. The next sheet is an example problem from the text. Select the cells at the top of the columns to see the formulas and format. 2. Columns A,B, and C are the input data. Note that the upper boundary is used. Columns D and E are used to calculate the average and sample standard deviation. Column F calculates the z value using the upper boundary (Column B), the average, and the sample standard deviation. Column G is the area (cumulative probability) under the normal curve to the left of the z value in the same manner as Table A. Column H is the area [probability] for each cell. Note that the formula for Row 3 is different than the rest of the rows. Column I is the expected frequency for each cell. It equals the value in Column H times the total number of observed values (110). Column J is the chi-squared value which can be compared to a chi-squared table to determine the observed values (110). This column is really not necessary because the program calculates the observed values (110) and performs the chi-squared test at I21 and K21. Column K is an adjustment to bring the total number of observed values to 110. The chi-squared test for the adjustment gives a probability of 0.971that the distribution is normal. 3. The following sheet, called template, should be copied before using the program. This activity is accomplished by selecting EDIT, selecting MOVE OR COPY SHEET, selecting CREATE A COPY, and locating the new sheet, called template (2), in the dialog box. 4. The template is designed for 9 cells. If more or less cells are required, the appropriate changes must be made.

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8. value: 10.00 points The following frequency distribution reports the number of frequent flier miles, reported in thousands, for employees of Brumley Statistical Consulting Inc., during the first quarter of 2013. Frequent Flier Miles (000) Number of Employees 0 up to 4 5 4 up to 8 13 8 up to 12 22 12 up to 16 7 16 up to 20 4 ________________________________________ ________________________________________ Total 51 ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________ a. How many employees were studied? Number of employees b. What is the midpoint of the first class? (Round your answer to 1 decimal place.) Midpoint d. A frequency polygon is to be drawn. What are the coordinates of the plot for the second class? , References eBook & 9. value: 10.00 points The following cumulative frequency polygon shows the hourly wages of a sample of certified welders in the Atlanta, Georgia, area. a. How many welders were studied? Number of welders b. What is the class interval? Class interval c. About how many welders earn less than \$26 per hour? Number of welders d. About 80% of the welders make less than what amount? Amount e. Twenty of the welders studied made less than what amount? Amount f. What percent of the welders make less than \$23 per hour? Percent of welders 10. value: 10.00 points The following is the number of minutes to commute from home to work for a group of 25 automobile executives. 28 25 45 37 41 19 32 25 17 23 23 28 36 31 25 20 32 25 32 43 35 42 38 32 28 a. How many classes would you recommend? Number of classes b. What class interval would you suggest? (Round up your answer to the next whole number.) Class interval c. Organize the data and plot a frequency distribution on a piece of paper. Comment on the shape of the frequency distribution.

## 8. value: 10.00 points The following frequency distribution reports the number of frequent flier miles, reported in thousands, for employees of Brumley Statistical Consulting Inc., during the first quarter of 2013. Frequent Flier Miles (000) Number of Employees 0 up to 4 5 4 up to 8 13 8 up to 12 22 12 up to 16 7 16 up to 20 4 ________________________________________ ________________________________________ Total 51 ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________ a. How many employees were studied? Number of employees b. What is the midpoint of the first class? (Round your answer to 1 decimal place.) Midpoint d. A frequency polygon is to be drawn. What are the coordinates of the plot for the second class? , References eBook & 9. value: 10.00 points The following cumulative frequency polygon shows the hourly wages of a sample of certified welders in the Atlanta, Georgia, area. a. How many welders were studied? Number of welders b. What is the class interval? Class interval c. About how many welders earn less than \$26 per hour? Number of welders d. About 80% of the welders make less than what amount? Amount e. Twenty of the welders studied made less than what amount? Amount f. What percent of the welders make less than \$23 per hour? Percent of welders 10. value: 10.00 points The following is the number of minutes to commute from home to work for a group of 25 automobile executives. 28 25 45 37 41 19 32 25 17 23 23 28 36 31 25 20 32 25 32 43 35 42 38 32 28 a. How many classes would you recommend? Number of classes b. What class interval would you suggest? (Round up your answer to the next whole number.) Class interval c. Organize the data and plot a frequency distribution on a piece of paper. Comment on the shape of the frequency distribution.

Another property we use is frequency. Frequency (f) is the number of cycles per second. We measure frequency in units of Hertz, (Hz). Frequency is the inverse of the time for one complete cycle. We call the time for one complete cycle the period (T) and measure in units of time. A complete cycle includes every possible value that repeats.What is the frequency of the signal?

## Another property we use is frequency. Frequency (f) is the number of cycles per second. We measure frequency in units of Hertz, (Hz). Frequency is the inverse of the time for one complete cycle. We call the time for one complete cycle the period (T) and measure in units of time. A complete cycle includes every possible value that repeats.What is the frequency of the signal?

Frequency = 1/T =1/7 Hz   Another property we use … Read More...
Q There are two object in front of you. both hot and glowing. one is outputting high frequency x-ray and the other is glowing with infrared light. which is hotter.

Ans