Essay
A researcher wishes to test whether a particular diet has an effect on blood pressure. The blood pressure of 25 randomly selected adults is measured. After one month on the diet, each person's blood pressure is again measured. For 16 people, the second blood pressure reading was lower than the first, and for 9 people, the second blood pressure reading was higher than the first. At the 0.01 significance level, test the claim that the diet has an effect on blood pressure.
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H?: The diet does not have an effect on ...View Answer
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