40, Sat 7:47! rks Window Help courses.aplia.com Average: 3/5 Attempts:3 AaAa 3.

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40, Sat 7:47! rks Window Help courses.aplia.com Average: 3/5 Attempts:3 AaAa 3. Factors that influence a hypothesis test Suppose you conduct a hypothesis test about a population mean when the standard deviation is known (a "z test-) by calculating a 2 statistic and determining whether to reject the null hypothesis. Assume that your z statistic is a positive value and that the study design or to the result increases, decreases, or stays the same for each of these changes. Use the dropdown menus in the right-hand column to indicate your choice. you will reject the null hypothesis when z is very large. Listed below are possible changes to ts of the study. Determine whether the likelihood of rejecting the null hypothesis The Likelihood of Rejecting the Null Hypothesis Change in Study Design or Results A decrease in the significance level (such as using ·01 instead of -.05) An increase in the population variance (o2) An increase in the obtained difference (M-) A switch from using a two-tailed test to a one-tailed test Suppose you reject the null hypothesis. Then, the results of your study are 17 MacBook Air

Explanation / Answer

a decrease in significance level.................................. decrease

increase in population variance................................ decrease

increase in obtained difference ............................... increase

a switch frm using .a two tailed test........................ stays the same

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