Medical researchers conducted a study to determine whether treadmill exercise could improve the walking ability of patients suffering from claudication, which is pain caused by insufficient blood flow to the muscles of the legs. A sample of 81 patients walked on a treadmill for six minutes every day. After six months, the mean distance walked in six minutes was 485 meters, with a standard deviation of 113 meters. For a control group of 84 patients who did not walk on a treadmill, the mean distance was 500 meters with a standard deviation of 127 meters. Can you conclude that the mean distance walked for patients using a treadmill is less than the mean for the controls? Let m1 denote the mean distance walked for patients who used a treadmill. Use the a=0.1 level of significance and the TI-84 Plus calculator.
Medical researchers conducted a study to determine whether treadmill exercise could improve the walking ability of patients suffering from claudication, which is pain caused by insufficient blood flow to the muscles of the legs. A sample of 81 patients walked on a treadmill for six minutes every day. After six months, the
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