Question
A researcher wishes to determine whether people with high blood pressure can reduce their blood pressure, measured in mm Hg, by following a particular diet.
A researcher wishes to determine whether people with high blood pressure can reduce their blood pressure, measured in mm Hg, by following a particular diet. Use a significance level of 0.05 to test the claim that the treatment group is from a population with a smaller mean than the control group. Assume unequal variances between the two populations.
Treatment | Control | |
n | 35 | 28 |
x | 189.1 | 203.7 |
sx | 38.7 | 39.2 |
1. What are the appropriate hypotheses?(1 point)
A) H0: 1 = 2. H1: 1 > 2
B) H0: 1 2. H1: 1 < 2
C) H0: 1 = 2. H1: 1 < 2
D) H0: 1 = 2. H1: 1 2
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