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main.uni Lock, Statistics: Unlocking the Power of Data, 2e PRINTER VERSION Box N

ID: 3336507 • Letter: M

Question

main.uni Lock, Statistics: Unlocking the Power of Data, 2e PRINTER VERSION Box NEXT Chapter 4, Section 4, Exercise 124 In this exercise, we are conducting many hypothesis tests to test a claim. Assume that the null hypothesis is true. If 180 tests are conducted using a significance level of 5%, approximately how many of the tests will incorrectly find significance? of the tests will find significance. exact number, no tolerance By accessing this Question Assistance, you will learn while you eam points based on the Point Potential Policy set by your Question Attempts: 1 of 5 used SAVE FOR LATER SUBMIT ANSWIR Earn Maximum Points available only if you answer this question correctly in two attempts or less MapleNet

Explanation / Answer

Exercise 124:

As the level of significance here is 0.05, therefore if the null hypothesis is true, if 180 tests are conducted, then in 0.05*180 = 9 tests will the test output will be that the test is significant incorrectly.

Therefore 9 tests is the required number of tests here out of the total 180 tests where the test would incorrectly be significant and the null hypothesis would be rejected even when it is true.