Exercise and blood pressure: Systolic blood pressure, in millimeters of mercury, was measured for a sample of 15 subjects who reported exercising regularly and for a sample of 12 patients who reported having a sedentary lifestyle. The results were as follows.

Can you conclude that the median systolic blood pressure is less for those who exercise than for those who are sedentary? Use the α = 0.05 level of significance.

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Exercise 127 107 105 140 107 101 122 135 127 108 115 118 139 106 134 Sedentary 154 142 122 134 110 150 149 146 118 135 106 126