In: Statistics and Probability
TWO MEANS
A researcher wishes to determine whether people with high blood pressure can reduce their blood pressure by following a particular diet. Use the sample data below to test the claim that those who followed the diet have a lower mean blood pressure than those who did not followed the diet.
Followed the diet: n1 = 85, x ̅_1 = 189.1 s1 = 38.7 Did not follow the diet: n2 = 75, x ̅_2 = 203.7 s2 = 39.2
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