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 μ₁ = mean before workout. before 71 68 67 76 73 60 70 after 72 72 70 74 74 62 78 Construct the appropriate confidence interval for the given level of significance. ( [three decimal accuracy] [three decimal accuracy]

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