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A magazine includes a report on the energy costs per year for 32-inch liquid crystal display (LCD) televisions. The article states that 14 randomly selected 32-inch LCD televisions have a sample standard deviation of $3.26. Assume the sample is taken from a normally distributed population. Construct 95% confidence intervals for (a) the population variance o and (b) the population standard deviation o. Interpret the results. (a) The confidence interval for the population variance is (.). (Round to two decimal places as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. With 95% confidence, you can say that the population variance is less than O B. With 5% confidence, you can say that the population variance is greater than OC. With 95% confidence, you can say that the population variance is between O D. With 5% confidence, you can say that the population variance is between and and (b) The confidence interval for the population standard deviation is (. ). (Round to two decimal places as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. With 5% confidence, you can say that the population standard deviation is less than O B. With 95% confidence, you can say that the population standard deviation is between dollars per year. and dollars per year. O C. With 5% confidence, you can say that the population standard deviation is between O D. With 95% confidence, you can say that the population standard deviation is greater dollars per year. than dollars per year. and

A magazine includes a report on the energy costs per year for 32-inch liquid crystal display (LCD) televisions. The article states that 14 randomly selected 32-inch LCD televisions have a sample standard deviation of $3.26. Assume the sample is taken from a normally distributed population. Construct 95% confidence intervals for (a) the population variance o and (b) the population standard deviation o. Interpret the results. (a) The confidence interval for the population variance is (.). (Round to two decimal places as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. With 95% confidence, you can say that the population variance is less than O B. With 5% confidence, you can say that the population variance is greater than OC. With 95% confidence, you can say that the population variance is between O D. With 5% confidence, you can say that the population variance is between and and (b) The confidence interval for the population standard deviation is (. ). (Round to two decimal places as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. With 5% confidence, you can say that the population standard deviation is less than O B. With 95% confidence, you can say that the population standard deviation is between dollars per year. and dollars per year. O C. With 5% confidence, you can say that the population standard deviation is between O D. With 95% confidence, you can say that the population standard deviation is greater dollars per year. than dollars per year. and

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A magazine includes a report on the energy costs per year for 32-inch liquid crystal display (LCD) televisions. The article states that 14 randomly selected 32-inch LCD televisions have a tro sample standard deviation of $3.26. Assume the sample is taken from a normally distributed population. Construct 95% confidence intervals for (a) the population variance o and (b) the population standard deviation o. Interpret the results. = is (a) The confidence interval for the population variance is (Round to two decimal places as needed.) dd Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice (Round to two decimal places as needed.) O A. With 95% confidence, you can say that the population variance is less than O B. With 5% confidence, you can say that the population variance is greater than OC. With 95% confidence, you can say that the population variance is between O D. With 5% confidence, you can say that the population variance is between and and (b) The confidence interval for the population standard deviation is ( ). (Round to two decimal places as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. With 5% confidence, you can say that the population standard deviation is less than O B. With 95% confidence, you can say that the population standard deviation is between dollars per year. and dollars per year. O D. With 95% confidence, you can say that the population standard deviation is greater O C. With 5% confidence, you can say that the population standard deviation is between dollars per year. than dollars per year. and Next 10:51 PM 3/13/2022
Transcribed Image Text:A magazine includes a report on the energy costs per year for 32-inch liquid crystal display (LCD) televisions. The article states that 14 randomly selected 32-inch LCD televisions have a tro sample standard deviation of $3.26. Assume the sample is taken from a normally distributed population. Construct 95% confidence intervals for (a) the population variance o and (b) the population standard deviation o. Interpret the results. = is (a) The confidence interval for the population variance is (Round to two decimal places as needed.) dd Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice (Round to two decimal places as needed.) O A. With 95% confidence, you can say that the population variance is less than O B. With 5% confidence, you can say that the population variance is greater than OC. With 95% confidence, you can say that the population variance is between O D. With 5% confidence, you can say that the population variance is between and and (b) The confidence interval for the population standard deviation is ( ). (Round to two decimal places as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. With 5% confidence, you can say that the population standard deviation is less than O B. With 95% confidence, you can say that the population standard deviation is between dollars per year. and dollars per year. O D. With 95% confidence, you can say that the population standard deviation is greater O C. With 5% confidence, you can say that the population standard deviation is between dollars per year. than dollars per year. and Next 10:51 PM 3/13/2022
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