Suppose you conduct a t test for single samples by calculating a t_obt statistic

Question

Suppose you conduct a t test for single samples by calculating a t_obt statistic and determining whether to reject the null hypothesis. Assume that your t_obt statistic is a positive value and that you will reject the null hypothesis when t_obt is very large. For each of the potential changes to the components of your study design or the results listed below, determine the change to the t_obt statistic, and then select "Increases," "Decreases," or "Stays the same" from the dropdown menu in the right-hand column.

Explanation / Answer

1) a switch from using ................ stays the same

2) increase in the sample variance ......................................................decreases

3)increase in the signficance level.......................................................stays the same

4) an increase in the sample size ........................................................increases

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