For the data of Exercise 15.4, use the Kruskal-Wallis test of the null hypothesis that the population mean sales levels are identical for three box colors.
Answer to relevant QuestionsUsing the data of Exercise 15.5, perform a Kruskal Wallis test of the null hypothesis that the population mean test scores are the same for students assigned to the four teaching assistants. In exercise Based on the data of Exercise 15.9, use the Kruskal Wallis method to test the null hypothesis of equality of growth predictions for population mean sales for the four regions. In exercise Given the following analysis of variance table, compute mean squares for between groups and within groups. Compute the F ratio and test the hypothesis that the group means are equal. Three television pilots for potential situation-comedy series were shown to audiences in four regions of the country-the East, the South, the Midwest, and the West Coast. Based on audience reactions, a score (on a scale from ...Random samples of two freshmen, two sophomores, two juniors, and two seniors each from four dormitories were asked to rate, on a scale of 1 (poor) to 10 (excellent), the quality of the dormitory environment for studying. The ...
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