Researchers wonder if pet exposure while studying is distracting or helpful? Researchers get 48 individuals and while they study for their PSYC 101 exam, they pet a dog. Those students end up scoring an average of 46.5 on the PSYC 101 exam. Over the past 35 years, the average score on that PSYC 101 exam has been 50 with a standard deviation of 10.5. Is there a difference in the PSYC 101 exam scores for the group petting a dog during studying compared to the historical exam scores? Test at a = .05. a. Which test statistic is most appropriate to use for this research question (z for X, z for M, single sample t, independent t-test)? Explain/support your answer. b. Test the research question using a = .05. Type your calculated values here. i. Critical value(s) from step 2 of hypothesis testing ii. Test statistic and variability measure from step 3 of hypothesis testing iii. Step 4 of hypothesis testing - Was the test significant or not significant? c. Make a single sentence statement regarding the significance of the test using specific IV/DV descriptors. This sentence should use the word(s) significant/not significant and include the IV and DV used