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 σ. Interpret the results. 4.467 4.426 4.016 4.329 4.001 3.759 3.824 3.774 4.238 3.933 4.133 4.554 3.941 3.762 3.849 3.809 4.477 (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.) OA. With 90% confidence, it can be said that the population variance is between and OC. With 90% confidence, it can be said that the population variance is less than OB. With 10% confidence, it can be said that the population variance is between and 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 (.). (Round to three decimal places as needed.)
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 σ. Interpret the results. 4.467 4.426 4.016 4.329 4.001 3.759 3.824 3.774 4.238 3.933 4.133 4.554 3.941 3.762 3.849 3.809 4.477 (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.) OA. With 90% confidence, it can be said that the population variance is between and OC. With 90% confidence, it can be said that the population variance is less than OB. With 10% confidence, it can be said that the population variance is between and 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 (.). (Round to three decimal places as needed.)
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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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 σ. Interpret the results.
4.467
4.426 4.016 4.329 4.001 3.759
3.824 3.774 4.238 3.933 4.133 4.554
3.941
3.762 3.849 3.809 4.477
(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.)
OA. With 90% confidence, it can be said that the
population variance is between
and
OC. With 90% confidence, it can be said that the
population variance is less than
OB. With 10% confidence, it can be said that the
population variance is between and
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 (.).
(Round to three decimal places as needed.)
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