e 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 a and (b) the population andard deviation o. Interpret the results. 4.481 4.411 4.027 4.319 4.001 3.743 3.811 3.768 4.234 3.985 4.152 4.565 3.964 3.763 3.856 3.823 4.465 (a) The confidence interval for the population variance is i (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.) and O B. With 90% confidence, it can be said that the population variance is greater than O A. With 10% confidence, it can be said that the population variance is between O D. With 90% confidence, it can be said that the population variance is between and O C. With 10% 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.) More

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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 o2 and (b) the population
standard deviation o. Interpret the results.
4.481 4.411
4.027 4.319 4.001
3.743
3.811 3.768 4.234 3.985 4.152
4.565
3.964 3.763 3.856
3.823 4.465
(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
O B. With 90% confidence, it can be said that the population variance is greater than
C. With 10% confidence, it can be said that the population variance is less than
O D. With 90% confidence, it can be said that the population variance is between
and
(b) The confidence interval for the population standard deviation is ( ).
(Round to three decimal places as needed.)
(1,1)
More
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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 o2 and (b) the population standard deviation o. Interpret the results. 4.481 4.411 4.027 4.319 4.001 3.743 3.811 3.768 4.234 3.985 4.152 4.565 3.964 3.763 3.856 3.823 4.465 (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 O B. With 90% confidence, it can be said that the population variance is greater than C. With 10% confidence, it can be said that the population variance is less than O D. With 90% confidence, it can be said that the population variance is between and (b) The confidence interval for the population standard deviation is ( ). (Round to three decimal places as needed.) (1,1) More Click to select your answer(s). End Insert Delete 23 Home F11 F12 F9 F10 F7 F8 Esc F5 F6 F3 F4 F2 FnLock F1 Backspa & 23 $4 6 2 3 T U E Q Tab G H J K D F R S
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