Define Hypothesis testing with one way ANOVA and Tukey's test.

(1) 29 randomly selected subjects were exposed to commercials shown in more involving programs.

(2) 29 randomly selected subjects were exposed to commercials shown in less involving programs, and

(3) 29 randomly selected subjects watched commercials only

The mean brand recall scores for these three groups were, respectively, X1-bar = 1.21, X2-bar= 2.24, and X3-bar= 2.28. Furthermore, a one-way ANOVA of the data shows that SST = 21.40 and SSE = 85.56.

Perform pair wise comparisons of the treatment means by computing a Tukey simultaneous 95 percent confidence interval for each of the pair wise differences μ1 - μ2, μ2 - μ3, and μ2 - μ3. Which type of program content results in the worst mean brand recall score?