11.27 According to a Yankelovich poll, women spend an average of 19.1 hours shopping during the month of December, compared to 12.7 hours for men. Assuming that file XR11027 contains the survey data underlying these results, use the 0.01 level in examining whether the sample mean for women is significantly higher than that for men. Identify and interpret the p-value for the test.

Source: Anne R. Carey and Gary Visgaitis, “‘Tis the Season, Health,” USA Today 1999 Snapshot Calendar, December 8.