. Question 1 Pulse before coffee 66 82 63 71 75 65 72 Pulse after coffee 65 82 62 76 75 69 74 Use the sample data shown above to decide whether mean pulse before drinking coffee is less than than mean pulse after drinking coffee at a = 0.01. For correct grading, use d = before - after. 1. The population distribution requirement for this test is: O Need a normally distributed population O None needed The hypotheses are: O Ho: Ha 0 O Ho: /d = 0; Ha: Ma # 0 O Ho: M1 /2 O Ho: Md 2 0; Ha: Ha a O Do not reject Ho since P o O Reject Ho since P