Suppose a local manufacturing company claims their production line has a variance of less than 9.0. A quality control engineer decides to test this claim by sampling 35 parts. She finds that the standard deviation of the sample is 2.12. Is this enough evidence at the 1% level of significance, to accept the manufacturing companies claim? Calculate the appropriate test statistic (round to 2 decimal places as needed) Determine the appropriate critical value (round to 3 decimal places as needed)
Suppose a local manufacturing company claims their production line has a variance of less than 9.0. A quality control engineer decides to test this claim by sampling 35 parts. She finds that the standard deviation of the sample is 2.12. Is this enough evidence at the 1% level of significance, to accept the manufacturing companies claim? Calculate the appropriate test statistic (round to 2 decimal places as needed) Determine the appropriate critical value (round to 3 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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Suppose a local manufacturing company claims their production line has a variance of less than 9.0. A quality control engineer decides to test this claim by sampling 35 parts. She finds that the standard deviation of the sample is 2.12. Is this enough evidence at the 1% level of significance, to accept the manufacturing companies claim?
Calculate the appropriate test statistic (round to 2 decimal places as needed)
Determine the appropriate critical value (round to 3 decimal places as needed)
Which of the following is your conclusion based on the information above:
- Reject the null hypothesis. There is insufficient evidence that the population variance is less than 9.0.
- Do not reject the null hypothesis. There is insufficient evidence that the population variance is at least 9.0
- Reject the null hypothesis. There is sufficient evidence that the population variance is less than 9.0.
- Do not reject the null hypothesis. There is sufficient evidence that the population variance is less than 9.0.
- Reject the null hypothesis. There is sufficient evidence that the population variance is at least 9.0
- Do not reject the null hypothesis. There is insufficient evidence that the population variance is less than 9.0.
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