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Will eating oatmeal promote healthy levels of cholesterol? A consumer reports analyst took a sample of 39 people with high cholesterol and asked them to
Will eating oatmeal promote healthy levels of cholesterol? A consumer reports analyst took a sample of 39 people with high cholesterol and asked them to eat oatmeal once a day for 3 months. Measurements were taken of their cholesterol levels before and after the 3 months in mg/dl. The analyst is testing whether the cholesterol levels after the diet are different from the cholesterol levels before the diet. The hypotheses for this test are as follows: Null Hypothesis: Up = 0, Alternative Hypothesis: Up # 0. If the analyst calculated the mean difference in cholesterol levels (after - before) to be 0.69 mg/dL with a standard deviation of 5.06 md/dL, what is the test statistic and p-value for the paired hypothesis t-test? 1) Test Statistic: 0.852, P-Value: 0.2 O 2) Test Statistic: 0.852, P-Value: 0.8 ( 3) Test Statistic: -0.852, P-Value: 0.4 ( 4) Test Statistic: 0.852, P-Value: 1.8 5) Test Statistic: 0.852, P-Value: 0.4
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