Name: Lab - Ch 11a - 11.1 & 11.2 MAT 152 Due: Sunday, July 10 3. Seven volunteers taking the Graduate Record Examination (GRE) allowed nurses to measure their pulse rate (heart rate) just prior to the start of the half-day test and at the end of the half-day test. Researchers wanted to determine if the heart rates of the students were greater prior to the start of the exam. The results are summarized in the table. Assume the data is normal with no outliers. Volunteer Before After #1 73 #12 82 84 #3 52 $2 #4 100 98 #5 119 1 12 #6 63 66 75 74 3.1. Why are these matched pairs data? 3.2. Conduct a hypothesis test to determine if the mean pulse rate of the students greater at the beginning of the exam than at the end? Use the a = 0.05 level of significance. 3.3. Construct & interpret a 90% confidence interval for the mean difference in the pulse rates of the students. Does the CI have evidence to support the results in part b