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The waiting times (in minutes) of a random sample of 21 people at a bank have a sample standard deviation of 4.6 minutes. Construct a confidence interval for the population variance o and the population standard deviation o. Use a 90% level of confidence. Assume the sample is from a normally distributed population. ..... (2.4,5.3) (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 90% confidence, you can say that the population variance is between O B. With 10% confidence, you can say that the population variance is between and. and O C. With 90% confidence, you can say that the population variance is greater than 21 O D. With 10% confidence, you can say that the population variance is less than What is the confidence interval for the population standard deviation o? (1.5, 2.6) (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 B. With 90% confidence, you can say that the population standard deviation is less than 4.6 minutes. O A. With 90% confidence, you can say that the population standard deviation is between and minutes. O C. With 10% confidence, you can say that the population standard deviation minutes. O D. With 10% confidence, you can say that the population standard deviation is greater than is between minutes and minutes.

The waiting times (in minutes) of a random sample of 21 people at a bank have a sample standard deviation of 4.6 minutes. Construct a confidence interval for the population variance o and the population standard deviation o. Use a 90% level of confidence. Assume the sample is from a normally distributed population. ..... (2.4,5.3) (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 90% confidence, you can say that the population variance is between O B. With 10% confidence, you can say that the population variance is between and. and O C. With 90% confidence, you can say that the population variance is greater than 21 O D. With 10% confidence, you can say that the population variance is less than What is the confidence interval for the population standard deviation o? (1.5, 2.6) (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 B. With 90% confidence, you can say that the population standard deviation is less than 4.6 minutes. O A. With 90% confidence, you can say that the population standard deviation is between and minutes. O C. With 10% confidence, you can say that the population standard deviation minutes. O D. With 10% confidence, you can say that the population standard deviation is greater than is between minutes and 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 21 people at a bank have a sample standard deviation of 4.6 minutes. Construct a confidence interval for the population variance o? and the population standard deviation o. Use a 90% level of confidence. Assume the sample is from a normally distributed population. 2.4,5.3) (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 90% confidence, you can say that the population variance is between O B. With 10% confidence, you can say that the population variance is between and and C. With 90% confidence, you can say that the population variance is greater O D. With 10% confidence, you can say that the population variance is less than than 21 What is the confidence interval for the population standard deviation o? 1.5, 2.6) (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 90% confidence, you can say that the population standard deviation is between and B. With 90% confidence, you can say that the population standard deviation is less than 4.6 minutes. minutes. O C. With 10% confidence, you can say that the population standard deviation is between O D. With 10% confidence, you can say that the population standard deviation is greater than minutes and minutes. minutes.
Transcribed Image Text:The waiting times (in minutes) of a random sample of 21 people at a bank have a sample standard deviation of 4.6 minutes. Construct a confidence interval for the population variance o? and the population standard deviation o. Use a 90% level of confidence. Assume the sample is from a normally distributed population. 2.4,5.3) (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 90% confidence, you can say that the population variance is between O B. With 10% confidence, you can say that the population variance is between and and C. With 90% confidence, you can say that the population variance is greater O D. With 10% confidence, you can say that the population variance is less than than 21 What is the confidence interval for the population standard deviation o? 1.5, 2.6) (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 90% confidence, you can say that the population standard deviation is between and B. With 90% confidence, you can say that the population standard deviation is less than 4.6 minutes. minutes. O C. With 10% confidence, you can say that the population standard deviation is between O D. With 10% confidence, you can say that the population standard deviation is greater than minutes and minutes. minutes.
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