Business stats

The number of hours of reserve capacity of 10 randomly selected automotive batteries is shown to the right. 1.73 1.83 1.51 1.69 1.74 1.97 1.31 1.55 1.48 2.05 Assume the sample is taken from a normally distributed population. Construct 99% confidence intervals for (a) the population variance of and (b) the population standard deviation a. (a) The confidence interval for the population variance is () (Round to three 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 three decimal places as needed.) O A. With 1% confidence, it can be said that the population variance is greater than O B. With 1% confidence, it can be said that the population variance is between and O C. With 99% confidence, it can be said that the population variance is between and O D. With 99% confidence, it can be said that the population variance is less than (b) The confidence interval for the population standard deviation is (].) (Round to three 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 three decimal places as needed.) O A. With 1% confidence, you can say that the population standard deviation is between and hours of reserve @ B. With 99% confidence, you can say that the population standard deviation is less than hours of reserve capacity. capacity. O C. With 1% confidence, you can say that the population standard deviation is greater than hours of reserve O D. With 99% confidence, you can say that the population standard deviation is between and hours of reserve capacity. capacity. Next MacBook Pro So BSS esc % 2 #