/ ) A researcher was interested in comparing the amount of time spent watching television by women and by men. Independent simple random samples of 14 women and 17 men were selected, and each person was asked how many hours he or she had watched television during the previous week. The summary statistics are as follows. Women Men x1 = 12.9 hrs X7 =13.7 hrs $1 = 3.9 hrs So = 5.2 hrs n1 = 14 n? = 17 The following 99% confidence interval was obtained for 1 - 2, the difference between the mean amount of time spent watching television for women and the mean amount of time spent watching television for men: -5.73 hrs