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The following table contains pulse rates collected from males, who are non-smokers but do drink alcohol ("Pulse rates before," 2013). The before pulse rate is before they exercised, and the after pulse rate was taken after the subject ran in place for one minute. Table: Pulse Rates of Males Before and After Exercise Pulse before Pulse Pulse Pulse after after before 76 88 59 92 56 110 60 104 64 126 65 82 50 90 76 150 49 83 145 155 58 136 84 140 68 125 78 141 88 150 85 131 80 146 78 132 78 168 a. Find the mean of the "Pulse before" data sample (give answer to nearest thousandth) b. Find the mean of the "Pulse after" data sample (give answer to nearest thousandth) C. Find the sample standard deviation of the "Pulse before" data sample (give answer to nearest thousandth) d. Find the sample standard deviation of the "Pulse after" data sample (give answer to nearest thousandth) e. Comparing the means and sample standard deviations of the "before" and "after" data samples, which of the following observations is TRUE? (enter number of answer you choose) 1. pulse rate is higher after exercise and is more consistent after exercise (data spread is narrower than spread of "before" data) 2. pulse rate is higher after exercise but is less consistent after exercise (data spread is broader than spread of "before" data) 3. pulse rate is higher after exercise and is just as consistent after exercise as it is before exercise (data spread is same as spread of "before" data) 4. pulse rate is higher after exercise but there is insufficient information to compare spreads of "before" data and "after" data to each other

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