Suppose we wanted to compare the somatic complaints (as shown on a scale known as PSS) of 3 groups of people: non-smokers, smokers and poeple who recently quit smoking. Using the folowwing data for PSS, do a one way ANOVA to test the hypothesis that the population means are equal:
Nonsmokers: 19,28,17,20,25
Smokers: 31,29,22,24,19
Quitters: 30,22,23,22,17
Using StatCrunch determine the means for the 3 groups and compute the sums of squares, degrees of freedom and mean squares for these data. What are the value of F?