1. Heart rates are determined before and 30 minutes after a Kettleball workout. It can be assumed that heart rates (bpm) are normally distributed. Use the data provided below to test to determine if average heart rates prior to the workout are significantly lower than 30 minutes after a Kettleball workout at the 0.02 level of significance. Let 11 = mean before workout.

before	65	80	67	76	73	66	65
after	67	79	74	76	76	71	68

Construct the appropriate confidence interval for the given level of significance to 3 decimals.

2. Heart rates are determined before and 30 minutes after a Kettleball workout. It can be assumed that heart rates (bpm) are normally distributed. Use the data provided below to test to determine if average heart rates prior to the workout are significantly lower than 30 minutes after a Kettleball workout at the 0.10 level of significance. Let 11 = mean before workout.

before	65	71	65	73	80	68
after	71	78	68	74	88	75

Find the Ho and Ha, test statistic, p-value (3 decimals), reject or accept Ho