A psych instructor gives his class of n= 25 college students a Stats test at the beginning of the school year. He believes students will score much differently at the end of the semester. To evaluate the changes that occur during the year, students are tested again at the end of the semester. Their test scores revealed a mean difference of Mp = 6.7 points. Round to the third decimal whenever necessary. a. State your hypotheses b. If s2 = 100, are the results sufficient to conclude that there is significant change? Use a one-tailed test with a = .05. Please specify (1) the t statistic, (2) the boundaries of the critical region, (3) state your decision. Show your computations for full credit c. Compute Cohen's d. d. Write up your results in a sentence as you would for a research paper; use APA format

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