The annual earnings of 14 randomly selected computer software engineers have a sample standard deviation of $3715. Assume the sample is from a normally distributed population. Construct a confidence interval for the population variance o and the population standard deviation o. Use a 90% level of confidence. Interpr the results. What is the confidence interval for the population variance o2? O ) (Round to the nearest integer as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to the nearest integer as needed.) O A. With 90% confidence, you can say that the population variance is greater O B. With 90% confidence, you can say that the population variance is betwee than and O C. With 10% confidence, you can say that the population variance is between O D. With 10% confidence, you can say that the population variance is less th and What is the confidence interval for the population standard deviation o? (.) (Round to the nearest integer as needed.)

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The annual earnings of 14 randomly selected computer software engineers have a sample standard deviation of $3715. Assume the sample is from a normally
distributed population. Construct a confidence interval for the population variance o and the population standard deviation o. Use a 90% level of confidence. Interpret
the results.
What is the confidence interval for the population variance o?
(| ) (Round to the nearest integer as needed.)
Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice.
(Round to the nearest integer as needed.)
O A. With 90% confidence, you can say that the population variance is greater
B. With 90% confidence, you can say that the population variance is between
than
and
O C. With 10% confidence, you can say that the population variance is between
D. With 10% confidence, you can say that the population variance is less than
and.
What is the confidence interval for the population standard deviation o?
(| ) (Round to the nearest integer as needed.)
Transcribed Image Text:The annual earnings of 14 randomly selected computer software engineers have a sample standard deviation of $3715. Assume the sample is from a normally distributed population. Construct a confidence interval for the population variance o and the population standard deviation o. Use a 90% level of confidence. Interpret the results. What is the confidence interval for the population variance o? (| ) (Round to the nearest integer as needed.) Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to the nearest integer as needed.) O A. With 90% confidence, you can say that the population variance is greater B. With 90% confidence, you can say that the population variance is between than and O C. With 10% confidence, you can say that the population variance is between D. With 10% confidence, you can say that the population variance is less than and. What is the confidence interval for the population standard deviation o? (| ) (Round to the nearest integer as needed.)
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