a. Using a 10% significance level, will you conclude that the machine should be stopped to make necessary adjustments?We conclude that the percentage of defective bearings is Choose your answer; We conclude that the percentage of defective bearings is (Not higher than/Higher than) 0.06, and the machine Choose your answer; and the machine (Should Not/Should) be stopped to make necessary adjustments.b. Perform the test of part a using a 1% significance level. Is your decision different from the one in part a?We Choose your answer; We (Fail to reject/ Reject) H0. The result Choose your answer; The result (Differs from the/ Is the same as)the answer in part a. Shulman Steel Corporation makes bearings that are supplied to other companies. One of the machines makes bearings that aresupposed to have a diameter of 4 inches. The bearings that have a diameter of either more or less than 4 inches are considereddefective and are discarded. When working properly, the machine does not produce more than 6% of bearings that are defective. Thequality control inspector selects a sample of 200 bearings each week and inspects them for the size of their diameters. Using thesample proportion, the quality control inspector tests the null hypothesis p < 0.06 against the alternative hypothesis p > 0.06,where p is the proportion of bearings that are defective. He always uses a 10% significance level. If the null hypothesis is rejected, themachine is stopped to make any necessary adjustments. One sample of 200 bearings taken recently contained 24 defective bearings.

Sample size , n = 200 24 are defective bearings , sample proportion = p^ = 24/200 = 0.12 Null and…

Answered: a. Using a 10% significance level, will…

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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Question

a. Using a 10% significance level, will you conclude that the machine should be stopped to make necessary adjustments?

We conclude that the percentage of defective bearings is Choose your answer; We conclude that the percentage of defective bearings is (Not higher than/Higher than) 0.06, and the machine Choose your answer; and the machine (Should Not/Should) be stopped to make necessary adjustments.

b. Perform the test of part a using a 1% significance level. Is your decision different from the one in part a?

We Choose your answer; We (Fail to reject/ Reject) H0. The result Choose your answer; The result (Differs from the/ Is the same as)the answer in part a.