A carpet store advertises that they will deliver carpet within12 days of purchase. A sample of 49 past customers shows an average delivery time of 13.2 days with a standard deviation of 4.6 days. State the null and alternative hypotheses and test the hypothesis at the 99% confidence level. Compute and test the null hypothesis using the P-value.A manufacturer of electrical products will not accept a shipment of parts from a vendor if there is reason to believe that the mean resistance is not 100 ohms. A random sample of 25 selected from a large shipment yields a mean of 97 ohms and a standard deviation of 10 ohms. Should the shipment be accepted? Use a .02 level of significance to justify your answer.

1) given that ; u = 12 days ? = 4.6 days X- = 13.2 days By using one sample mean test we solve…

Answered: A carpet store advertises that they…

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A carpet store advertises that they will deliver carpet within12 days of purchase. A sample of 49 past customers shows an average delivery time of 13.2 days with a standard deviation of 4.6 days. State the null and alternative hypotheses and test the hypothesis at the 99% confidence level. Compute and test the null hypothesis using the P-value.
A manufacturer of electrical products will not accept a shipment of parts from a vendor if there is reason to believe that the mean resistance is not 100 ohms. A random sample of 25 selected from a large shipment yields a mean of 97 ohms and a standard deviation of 10 ohms. Should the shipment be accepted? Use a .02 level of significance to justify your answer.

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