A company is doing a hypothesis test on the variation of quality from two suppliers. They believethat one of the suppliers has a different variance than the other supplier and would like to performa hypothesis test to support their claim. Both distributions are normal, and the populations areindependent. use a = 0.01Ho :012 = 0 2 ²HA:012 =0 2 2Supplier 1: standard deviation = 2.82, Sample size = 35Supplier 2: standard deviation = 3.18, Sample size = 18.The test statistic (rounded to 4 decimal places) is =The p-value (rounded to 4 decimal places) is =O Reject the null hypothesis - there is enough evidence is support a meaningful difference in thevariance of the suppliers.O Fail to reject the null hypothesis - there is not enough evidence to support a meaningfuldifference in the variance of the suppliers.

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Answered: A company is doing a hypothesis test on…

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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An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such that it would produce a mean pressure of 5.5 pounds/square inch. It is believed that the valve performs above the specifications. The valve was tested on 24 engines and the mean pressure was 5.7 pounds/square inch with a variance of 0.49. A level of significance of 0.01 will be used. Assume the population distribution is approximately normal. Make the decision to reject or fail to reject the null hypothesis.
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