UluicjhiDjulyevolindex.html?snapshotld-839538&id-3232; MINDTAP From Cengage Comp

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UluicjhiDjulyevolindex.html?snapshotld-839538&id-3232; MINDTAP From Cengage Complete: Chapter 9 Problem Set Attempts: Keep the Highest: /0.4 7. Factors that influence a hypothesis test with the t statistic Aa Aa Suppose you conduct a hypothesis test about a population mean when the standard deviation is unknown by calculating a t statistic and determining whether to reject the null hypothesis. Assume that your t statistic is a positive value and that you will reject the null hypothesis when t is very large. For each of the potential changes t the componen select "Increases," "Decreasès," or "Stays the same" from the dropdown menu in the right-hand column. ts of your study design or the results listed below, determine the change to the t statistic, and then The t statistic Change in Study Design or Results A switch from using a two-tailed test to a one-tailed test An increase in the sample standard deviation (s) A decrease in the significance level (such as using ? .01 instead of ? An increase in the sample size (n) .05)

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Solution:-

1) A switch from using a two-tailed test to a one-tailed test -> t statistic stays the same.

2) An increase in the sample standard deviation (s) -> decreases the t statistic

3) A decrease in the significance level(such as using alpha = 0.01 instead of Alpha = 0.05) -> t statistic stays the same

4) an increase in the sample size (n) -> increases the t statistic

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