Data for the ages of grooms and their brides for a random sample of 31 couples in Ventura County, California, were obtained and can be found at this text's website.
a. Compare the sample means.
b. Test the hypothesis that there is a significant difference in mean ages of brides and grooms, using a significance level of 0.05.
c. If the test had been done to determine whether the mean for the grooms was significantly larger than the mean for the brides, how would that change the alternative hypothesis and the p-value?