Refer to Exercise C.73 for a description of the data in Marriage Ages for a sample of

Question:

Refer to Exercise C.73 for a description of the data in Marriage Ages for a sample of 105 newly married couples.
(a) Use technology to find the mean age for the wives in this sample and construct a 95% confidence interval for the mean age at marriage for wives in the population.
(b) Repeat part (a) for the husbands€™ ages.
(c) Based on the confidence intervals in parts (a) and (b), can we predict what a hypothesis test for a difference in mean marriage age between the husband and wife in a couple might conclude, based on this dataset? If so, explain what that decision would be. If not, explain why not.

Exercise C.73

A sample of marriage licenses from 2010 to 2011 in St. Lawrence County in Northern New York State gives the ages of husbands and wives at the time of marriage for 105 newly married couples. The data are stored in MarriageAges and the first few cases from this file are shown in Table B.4. The question of interest is whether or not husbands tend to be older than their wives. Use StatKey or other technology and statistical inference to address this issue based on the questions in parts (a) and (b). In all cases be sure to interpret your findings in the context of this problem, stating to what population (if any) your findings apply.

Table B.4

Husband 53 38 46 30 31 26 29 48 65 29 50 34 44 36 23 31 25 51 46 26 Wife