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. New Treatment Placebo Standard Treatment 114 134 124 133 125 128 115 148 142 150 160 121 124 122 128 What is dfbetween? a. b.4 C.

Explanation / Answer

here as total number of treatments =3

therefore degree of freedom =number of categories -1 =3-1 =2

option C is correct

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