The piston diameter of a certain hand pump is 0.5 inch. The manager determines that the diameters are normally distributed, with a mean of 0.5 inch and a standard deviation of 0.005 inch. After recalibrating the production machine, the manager randomly selects 29 pistons and determines that the standard deviation is 0.0034 inch. Is there significant evidence for the manager to conclude that the standard deviation has decreased at the a= 0.05 level of significance? What are the correct hypotheses for this test? The null hypothesis is Ho: V The alternative hypothesis is H,:

The piston diameter of a certain hand pump is 0.5 inch. The manager determines that the diameters are normally distributed, with a mean of 0.5 inch and a standard deviation of 0.005 inch. After recalibrating the production machine, the manager randomly selects 29 pistons and determines that the standard deviation is 0.0034 inch. Is there significant evidence for the manager to conclude that the standard deviation has decreased at the a= 0.05 level of significance? What are the correct hypotheses for this test? The null hypothesis is Ho: V The alternative hypothesis is H,:

Name: Calculate the test statistics Calculate the p value Correct conclusion
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Description: Calculate the test statistics Calculate the p value Correct conclusion The piston diameter of a certain hand pump is 0.5 inch. The manager determines that the diameters are normally distributed, with a mean of 0.5 inch and a standard deviation of 0.0

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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