The Canadian government would like to test the hypothesis that the standard deviation for the hourly wage for men is equal to the standard deviation for the hourly wage for women.
The following data summarizes the sample statistics for hourly wages for men and women. Men WomenSample standard deviation 6.10 6.80Sample size 21 25Using = 0.05, the conclusion for this hypothesis test would be that because the test statistic is ___________________ ______________.A) more than the critical value, we fail to reject the null hypothesis and conclude that the standard deviation for the hourly wage for men is equal to the standard deviation for the hourly wage for women
B) more than the critical value, we can reject the null hypothesis and conclude that the standard deviation for the hourly wage for men is not equal to the standard deviation for the hourly wage for women
C) less than the critical value, we reject the null hypothesis and conclude that the standard deviation for the hourly wage for men is not equal to the standard deviation for the hourly wage for women
D) less than the critical value, we fail to reject the null hypothesis and cannot conclude that the standard deviation for the hourly wage for men is not equal to the standard deviation for the hourly wage for women
Question 2
Entertainment Software Association would like to test if the median age of gamers (those that routinely play video games) is more than 30 years old. The following table summarizes the ages of a random sample of gamers.
Age Number of GamersBelow 30 12Equal to 30 4More than 30 30The appropriate nonparametric procedure for this analysis is the _________________ test.A) Wilcoxon signed-rank
B) Kruskal-Wallis
C) Wilcoxon rank-sum
D) sign
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