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The waiting times (in minutes) of a random sample of 22 people at a bank have a sample standard deviation of 3.4 minutes. Construct a confidence interval for the population variance o and the population standard deviation o. Use a 99% level of confidence. Assume the sample is from a normally distributed population. What is the confidence interval for the population variance o?? (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to one decimal place as needed.) O A. With 1% confidence, you can say that the population variance is less than O B. With 99% confidence, you can say that the population variance is greates than O C. With 1% confidence, you can say that the population variance is between O D. With 99% confidence, you can say that the population variance is and between and What is the confidence interval for the population standard deviation o? ) (Round to one decimal place as needed.) nterpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. Round to one decimal place as needed.) O A. With 1% confidence, you can say that the population standard deviation is O B. With 99% confidence, you can say that the population standard deviatic greater than minutes. is between and minutes. D C. With 99% confidence, you can say that the population standard deviation O D. With 1% confidence, you can say that the population standard deviation between minutes and minutes. is less than minutes.

The waiting times (in minutes) of a random sample of 22 people at a bank have a sample standard deviation of 3.4 minutes. Construct a confidence interval for the population variance o and the population standard deviation o. Use a 99% level of confidence. Assume the sample is from a normally distributed population. What is the confidence interval for the population variance o?? (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to one decimal place as needed.) O A. With 1% confidence, you can say that the population variance is less than O B. With 99% confidence, you can say that the population variance is greates than O C. With 1% confidence, you can say that the population variance is between O D. With 99% confidence, you can say that the population variance is and between and What is the confidence interval for the population standard deviation o? ) (Round to one decimal place as needed.) nterpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. Round to one decimal place as needed.) O A. With 1% confidence, you can say that the population standard deviation is O B. With 99% confidence, you can say that the population standard deviatic greater than minutes. is between and minutes. D C. With 99% confidence, you can say that the population standard deviation O D. With 1% confidence, you can say that the population standard deviation between minutes and minutes. is less than minutes.

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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The waiting times (in minutes) of a random sample of 22 people at a bank have a sample standard deviation of 3.4 minutes. Construct a confidence interval for the population variance o and the population standard deviation o. Use a 99% level of confidence. Assume the sample is from a normally distributed population. What is the confidence interval for the population variance o?? (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to one decimal place as needed.) O A. With 1% confidence, you can say that the population variance is less than O B. With 99% confidence, you can say that the population variance is greates than O C. With 1% confidence, you can say that the population variance is between O D. With 99% confidence, you can say that the population variance is and between and What is the confidence interval for the population standard deviation o? ) (Round to one decimal place as needed.) nterpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. Round to one decimal place as needed.) O A. With 1% confidence, you can say that the population standard deviation is O B. With 99% confidence, you can say that the population standard deviatic greater than minutes. is between and minutes. D C. With 99% confidence, you can say that the population standard deviation O D. With 1% confidence, you can say that the population standard deviation between minutes and minutes. is less than minutes.
Transcribed Image Text:The waiting times (in minutes) of a random sample of 22 people at a bank have a sample standard deviation of 3.4 minutes. Construct a confidence interval for the population variance o and the population standard deviation o. Use a 99% level of confidence. Assume the sample is from a normally distributed population. What is the confidence interval for the population variance o?? (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to one decimal place as needed.) O A. With 1% confidence, you can say that the population variance is less than O B. With 99% confidence, you can say that the population variance is greates than O C. With 1% confidence, you can say that the population variance is between O D. With 99% confidence, you can say that the population variance is and between and What is the confidence interval for the population standard deviation o? ) (Round to one decimal place as needed.) nterpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. Round to one decimal place as needed.) O A. With 1% confidence, you can say that the population standard deviation is O B. With 99% confidence, you can say that the population standard deviatic greater than minutes. is between and minutes. D C. With 99% confidence, you can say that the population standard deviation O D. With 1% confidence, you can say that the population standard deviation between minutes and minutes. is less than minutes.
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