Excel users should note that empty cells (representing missing data) must be removed. For following variables conduct a test at the 5% significance level to determine whether Democrats and Republicans (PARTY: 1 = Democrat, 2 = Republicans) differ
How important to your health are regular vacations? In a study a random sample of men and women were asked how frequently they take vacations. The men and women were divided into two groups each. The members of group 1 had suffered a heart attack; the members of group 2 had not. The number of days of vacation last year was recorded for each person. Can we infer that men and women who suffer heart attacks vacation less than those who did not suffer a heart attack?
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