Suppose a hypertension trial is mounted and 18 participants are randomly assigne

Question

Suppose a hypertension trial is mounted and 18 participants are randomly assigned to one of the comparison treatments. Each participant takes the assigned medication and their systolic blood pressure (SBP) is recorded after 6 months on the assigned treatment. Is there a difference in mean SBP among the three treatment groups at the 5% significance level? The data are as follows. (Use alpha level = 0.05.) Standard Treatment Placebo 134 143 148 142 150 160 New Treatment 124 114 133 125 128 115 121 124 122 128 What is dftotal? a. 18 b. C. 2 d. 15

Explanation / Answer

Correct Option is B

Here Total Data = 18

Degree of freedom = 18-1 = 17

Correct Option is B

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