Question

In: Statistics and Probability

Suppose a health psychologist conducted a weight loss program for middle aged adults and obtained the...

Suppose a health psychologist conducted a weight loss program for middle aged adults and obtained the data presented in the table below. Use ANOVA to determine whether there is a difference in the three weight loss methods and whether the differences are statistically significant at the .05 level.


The Zone Weight Watchers Acupuncture
21 67 78
54 62 50
26 57 55
21 68 62
28 58 56
57 70 77
52 58 71
37 59 53
26 68 79
47 50 69

Please include step by step how to use spss ANOVA program and answer to the question

Solutions

Expert Solution

(1) Null and Alternative Hypothesis:

H0: There is no significance difference among the means of three weight loss methods

H1: There is significance difference among the means of three weight loss methods

i.e.

(3) Test Statistic: From the given data

Thus we conclude that there is significance difference among the means of three weight loss methods

orchestra answered 1 year ago
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