Exercise ---Hypothesis Testing 1. A nutritionist is investigating the effects of a rigorous walking program on systolic
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Exercise ---Hypothesis Testing 1. A nutritionist is investigating the effects of a rigorous walking program on systolic
Exercise ---Hypothesis Testing 1. A nutritionist is investigating the effects of a rigorous walking program on systolic blood pressure (SBP) in patients with mild hypertension. Subjects who agree to participate have their systolic blood pressure measured at the start of the study and then after completing the 6-week walking program. Subject Starting SBP Ending SBP 140 128 2 150 140 162 135 137 130 130 125 160 128 142 135 140 151 A. Based on the data, is there evidence that SBP is significantly reduced by the walking program? Run the appropriate test at the 5% level of significance. B. Which type of error may occur when you draw the conclusion? 2. 14 males with high cholesterol given oat bran cereal as part of diet for two weeks, and corn flakes cereal as part of diet for two weeks. Corn Flakes Oat Bran Difference Mean ) 4.44 mmol/L 4.08 0.36 sd (s) 1.0 1.1 0.40 Based on the data, is there evidence that oat bran cereal significantly lowers cholesterol level compared to corn flakes cereal ? Run the appropriate test at the 5% level of significance.