Three admission test preparation programs are being evaluated. The scores obtained by a sample of 20 people who used the programs provided the following data. Use the Kruskal Wallis test to determine whether there is a significant difference among the three test preparation programs. Use α = .05.
Answer to relevant QuestionsForty-minute workouts of one of the following activities three days a week will lead to a loss of weight. The following sample data show the number of calories burned during 40 minute workouts for three different activities. ...Consider the following set of rankings for a sample of 10 elements. a. Compute the Spearman rank-correlation coefficient for the data. b. Use α = .05 and test for significant rank correlation. What is your conclusion? Due to a recent decline in the housing market, the national median sales price for single-family homes is $180,000 (The National Association of Realtors, January 2009). Assume that the following data were obtained from ...A sample of 15 students received the following rankings on midterm and final examinations in a statistics course. Compute the Spearman rank-correlation coefficient for the data and test for a significant correlation with α ...Consider an acceptance sampling plan with n = 20 and c = 0. Compute the producer's risk for each of the following cases. a. The lot has a defect rate of 2%. b. The lot has a defect rate of 6%.
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