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To test the claim that...

To test the claim that a blood pressure medication reduces the diastolic blood pressure, a random sample of 10 people with high blood pressure had their pressures recorded. After a few weeks on the medication, their pressures were recorded again.

Subject 1 2 3 4 5 6 7 8 9 10

Before 94 87 105 92 102 85 110 95 92 93

After 87 88 93 87 92 88 96 87 92 86

a) Use a .05 level of significance to test the claim that the medicine lowered mean diastolic blood pressure.i) (Bonus) Using the same data above, construct a 98% confidence interval for the mean difference in blood pressures. What does interval suggest about the original claim?

Subject 1 2 3 4 5 6 7 8 9 10

Before 94 87 105 92 102 85 110 95 92 93

After 87 88 93 87 92 88 96 87 92 86

a) Use a .05 level of significance to test the claim that the medicine lowered mean diastolic blood pressure.i) (Bonus) Using the same data above, construct a 98% confidence interval for the mean difference in blood pressures. What does interval suggest about the original claim?

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