The diameters (in inches) of 17 randomly selected bolts produced by a machine are listed. Use a 95% level of confidence to construct a confidence interval for (a) the population variance o and (b) the population standard deviation o. Interpret the results. 4.469 4.436 4.008 4.315 4.002 3.763 3.828 3.777 4.234 3.963 4.136 4.562 3.951 3.739 3.877 3.833 4.482 (Round to three decimal places as needed.) O A. With 5% confidence, it can be said that the population variance is less than B. With 95% confidence, it can be said that the population variance is between 0.044 and 0.184. O C. With 95% confidence, it can be said that the population variance is greater O D. With 5% confidence, it can be said that the population variance is between than and (b) The confidence interval for the population standard deviation is (0.210,0.429 ). (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 place as needed.) O A. With 5% confidence, you can say that the population standard deviation is B. With 95% confidence, you can say that the population standard deviation is less than 7 inches. greater than inches. O C. With 5% confidence, you can say that the population standard deviation is O D. With 95% confidence, you can say that the population standard deviation between and inches. is between and inches.
The diameters (in inches) of 17 randomly selected bolts produced by a machine are listed. Use a 95% level of confidence to construct a confidence interval for (a) the population variance o and (b) the population standard deviation o. Interpret the results. 4.469 4.436 4.008 4.315 4.002 3.763 3.828 3.777 4.234 3.963 4.136 4.562 3.951 3.739 3.877 3.833 4.482 (Round to three decimal places as needed.) O A. With 5% confidence, it can be said that the population variance is less than B. With 95% confidence, it can be said that the population variance is between 0.044 and 0.184. O C. With 95% confidence, it can be said that the population variance is greater O D. With 5% confidence, it can be said that the population variance is between than and (b) The confidence interval for the population standard deviation is (0.210,0.429 ). (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 place as needed.) O A. With 5% confidence, you can say that the population standard deviation is B. With 95% confidence, you can say that the population standard deviation is less than 7 inches. greater than inches. O C. With 5% confidence, you can say that the population standard deviation is O D. With 95% confidence, you can say that the population standard deviation between and inches. is between and inches.
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 95% level of confidence to construct a confidence interval for (a) the
population variance o and (b) the population standard deviation o. Interpret the results.
4.469
4.436 4.008 4.315 4.002
3.763
3.828
3.777 4.234 3.963 4.136
4.562
3.951 3.739 3.877 3.833 4.482
.....
(Round to three decimal places as needed.)
O A. With 5% confidence, it can be said that the population variance is less than
B. With 95% confidence, it can be said that the population variance is
between 0.044 and 0.184 .
O C. With 95% confidence, it can be said that the population variance is greater O D. With 5% confidence, it can be said that the population variance is between
than
In
and
(b) The confidence interval for the population standard deviation is ( 0.210 , 0.429 ).
(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 place as needed.)
O A. With 5% confidence, you can say that the population standard deviation is
B. With 95% confidence, you can say that the population standard deviation
is less than 7 inches.
greater than
inches.
O C. With 5% confidence, you can say that the population standard deviation is O D. With 95% confidence, you can say that the population standard deviation
between
and
inches.
is between
and
inches.
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