Do students perform worse when they take an exam alone than when they take an exam in a classroom setting? Eight students were given two tests of equal difficulty. They took one test in a solitary room and they took the other in a rOom filled with other students. The results are shown below. 1 v. Exam Scores Alone '38]779 ]]74 ]]86] ]83] 77] 88]]3 Classroom \"VIEW 9215\"? 89 ]]1_ Assume a Normal distribution. What can be concluded at the the a: 0.05 level of significance level of significance? For .1... study. we should a. The null and atternative hypotheses would be: v v v (pteaseenteradecimau _. -. -. (Pleaseenteradeciman b. The test statistic = C] (please show your answer to 3 decimal places.) The p-value = [3 (Please show your answer to 4 decimal places.) The p-value is v (1 Based on this, we should v the null hypothesis. Thus, the final conclusion is that C] The results are statistically significant at a = 0.05, so there is sufficient evidence to conclude that the population mean test score taking the exam- alone is less than the population mean test score taking the exam in'aclassroom setting. [3 The results are statistically significant at a z 0.05, so there is sufficient evidence to conclude that the eight students scored lower on average taking the exam alone compared to the classroom setting. [3 The results are statistically insignificant at a= 0.05, so there is insufficient evidence to conclude that the population mean test score taking the exam alone is less than the population mean test - score taking the exam in a classroom setting. 71990 C] The results are statistically insignificant at a: 0.05, so there is statistically significant evidence to conclude that the population mean test score taking the exam alone is equal to the population mean test score taking the exam in a classroom setting. Hint: Helpful Video @ [+] Hints E' Question Help: 8 Message instructor