A vitamin-water manufacturer wants to compare the effects on sales of three water colors: green, blue, and red. Four regions are selected for the test, with the following ANOVA results.
If there is no interaction effect, test the individual null hypotheses on the effect of each factor on mean sales at α = .01.

Question

A vitamin-water manufacturer wants to compare the effects on sales of three water colors: green, blue, and red. Four regions are selected for the test, with the following ANOVA results.
  If there is no interaction effect, test the individual null hypotheses on the effect of each factor on mean sales at α = .01.

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The Answer of A vitamin-water manufacturer wants to compare the effects on sales of three water colors: green, blue, and red. Four regions are selected for the test, with the following ANOVA results.
  If there is no interaction effect, test the individual null hypotheses on the effect of each factor on mean sales at α = .01.

A Vitamin-Water Manufacturer Wants to Compare the Effects on Sales