Question: Using the chart below, assume you collected exam scores from 1000 students whose mean difference score and the standard deviation were exactly the same as you calculated as part of the calculations for the paired-samples t statistic from the chart below:

a. Using a two-tailed test and a p level of 0.05 , identify the critical t values and make a decision regarding the null hypothesis.

b. How did changing the sample size affect out decision regarding the null hypothesis?