(a) The confidence interval for the population variance is O). (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 10% confidence, it can be said that the population variance is between and. O B. With 90% confidence, it can be said that the population variance is between and O C. With 90% confidence, it can be said that the population variance is less than. OD. With 10% confidence, it can be said that the population variance is greater than. (b) The confidence interval for the population standard deviation is (O.D. (Round to three decimal places as needed.)

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Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice.
(Round to three decimal place as needed.)
A. With 10% confidence, you can say that the population standard deviation is less than
inches.
B. With 90% confidence, you can say that the population standard deviation is between
and
inches.
O C. With 90% confidence, you can say that the population standard deviation is greater than
inches.
D. With 10% confidence, you can say that the population standard deviation is between
and
inches.
Transcribed Image Text:Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to three decimal place as needed.) A. With 10% confidence, you can say that the population standard deviation is less than inches. B. With 90% confidence, you can say that the population standard deviation is between and inches. O C. With 90% confidence, you can say that the population standard deviation is greater than inches. D. With 10% confidence, you can say that the population standard deviation is between and inches.
The diameters (in inches) of 17 randomly selected bolts produced by a machine are listed. Use a 90% level of confidence to construct a confidence interval for (a) the population variance o? and (b) the population standard deviation o. Interpret
the results.
4.473
4.433
4.011
4.361
4.006
3.762
3.815
3.776
4.235
3.937
4.116
4.529
3.944
3.745
3.863
3.829
4.469
(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 10% confidence, it can be said that the population variance is between
and
B. With 90% confidence, it can be said that the population variance is between
and
C. With 90% confidence, it can be said that the population variance is less than
D. With 10% confidence, it can be said that the population variance is greater than
(b) The confidence interval for the population standard deviation is ( ).
(Round to three decimal places as needed.)
Transcribed Image Text:The diameters (in inches) of 17 randomly selected bolts produced by a machine are listed. Use a 90% level of confidence to construct a confidence interval for (a) the population variance o? and (b) the population standard deviation o. Interpret the results. 4.473 4.433 4.011 4.361 4.006 3.762 3.815 3.776 4.235 3.937 4.116 4.529 3.944 3.745 3.863 3.829 4.469 (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 10% confidence, it can be said that the population variance is between and B. With 90% confidence, it can be said that the population variance is between and C. With 90% confidence, it can be said that the population variance is less than D. With 10% confidence, it can be said that the population variance is greater than (b) The confidence interval for the population standard deviation is ( ). (Round to three decimal places as needed.)
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