Using the following Excel results:
(a) What was the overall sample size?
(b) How many groups were there?
(c) Write the hypotheses.
(d) Find the critical value of F for α = .10.
(e) Calculate the test statistic.
(f) Do the population means differ at α = .10?

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ANOVA Source of Variation Between Groups sS df MS 120.8706 325.0202 40.29018 16.25101 Within Groups 20 Total 445.8907 23