Question: sMD = t = t-critical = Reject the null hypothesis; conclude that changing answers has a significant effect on exam performance. Fail to reject the

sMD = t = t-critical = Reject the null hypothesis; conclude that changing answers has a significant effect on exam performance. Fail to reject the null hypothesis; conclude that changing answers has a significant effect on exam performance. Reject the null hypothesis; conclude that changing answers does not have a significant effect on exam performance. Fail to reject the null hypothesis; conclude that changing answers does not have a significant effect on exam performance. Construct a 95% confidence interval to estimate the size of the population mean difference. 2.388 to 11.612 1.388 to 10.612 6.388 to 15.612 4.388 to 13.612 Complete the following sentence demonstrating how the results of the hypothesis test and the confidence interval would appear in a research report. Changing answers in significantly exam scores

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