A medical researcher wishes to try three different technique…
A medical researcher wishes to try three different techniques to lower the weight of obese patients. The subjects are randomly selected and assigned to one of three groups. Group 1 is given medication, Group 2 is given an exercise program, and Group 3 is assigned a diet program. At the end of six weeks, the reduction in each subject’s weight (in pounds) is recorded. Picture1.png Analysis of Variance Source DF Adj SS Adj MS F-Value P-Value Group 2 184.3 92.167 10.83 0.001 Error 15 127.7 8.511 Total 17 312.0 Tukey Pairwise Comparisons: Tukey Simultaneous Tests for Differences of Means Difference of Levels Difference of Means SE of Difference 95% CI T-Value Adjusted P-Value 2 – 1 -7.83 1.68 (-12.20, -3.46) -4.65 0.001 3 – 1 -4.17 1.68 (-8.54, 0.20) -2.47 0.063 3 – 2 3.67 1.68 (-0.70, 8.04) 2.18 0.108 Individual confidence level = 97.97% Tukey Simultaneous 95% CIs Report the individual error rate for Tuckey’s multiple comparisons