Questions by bjenkins - Page 5
To investigate whether or not people tend to marry spouses of similar ages or whether husbands tend to be older than their wives, a student gathered age data from a sample of 24 couples, taken from marriage licenses filed in Cumberland County, PA, in June and July 1993.Diff(H-W)1-4-418221121042-5767241-612-71163132-1-110-110-418-1-714539-53-7212-4012413-1353-22020213-1112-3611-527-2-7-1191-2-135-581102-2-7157151) Define, in words.A. The total difference in husband and wife marriage ages in Cumberland County; d.B. Average age of men and average age of women; m and w.C. The average difference in husband and wife marriage ages in Cumberland County; d.2) Select the appropriate null and alternative hypotheses in the context of the study. A. Null: The average difference in marriage ages in Cumberland County is 0. Alt: The average difference in marriage ages is not 0.B. Null: The average difference in marriage ages in Cumberland County is not 0. Alt: The average difference in marriage ages is 0.C. Null: The average difference in marriage ages in Cumberland County is 0. Alt: The average difference in marriage ages is less than 0.D. Null: The average difference in marriage ages in Cumberland County is 0. Alt: The average difference in marriage ages is greater than 0.3) Select the appropriate null and alternative hypotheses in the context of the study depicted using symbolsA. Null: d = 0, Alt: d > 0B. Null: d = 0, Alt: d 0C. Null: d > 0, Alt: d = 0D. Null: d = 0, Alt: d < 04) For the 24 couples, the husbands are, on average, 1.875 years older than their wives (SD = 4.812). Use these statistics and the Theory-Based Inference applet to conduct a test of significance and report the resulting p-value to four decimal places.5) Based on the p-value, do you have strong evidence that, on average, husbands are older than their wives in Cumberland County?