Q 1). Watching Television: According to the Nielsen Media Research, children (ages 2-11) spend an average of 21 hours 30 minutes watching television per week while teens (ages 12-17) spend an average of 20 hours 40 minutes. Based on the sample statistics obtained below, is there sufficient evidence to conclude a difference in average television watching times between the two groups? Use = 0.01

CHILDREN TEENS

SAMPLE MEAN 22.45 18.50

SAMPLE VARIANCE 16.4 18.2

SAMPLE SIZE 15 15