10. Find the 95% confidence interv al ol ue uereice an means in Exercise 6 of this section. 11. Hours Spent Watching Television According to Nielsen Media Research, children (ages 2-11) spend an...

I need help with question 11 please

Extracted text: 10. Find the 95% confidence interv al ol ue uereice an means in Exercise 6 of this section. 11. Hours Spent Watching Television According to 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 statis- tics shown, is there sufficient evidence to conclude a se at 9-19


Extracted text: 498 Chapter 9 Testing the Difference Between Two Means, Two Propor difference in average television watching times between the two groups? Use a= 0.01. Children Teens bansta 18.50 Sample mean Sample variance Sample size 22.45 16.4 18.2 TS 15 15 Source: Time Almanac. 12. Professional Golfers' Earnings Two random samples of earnings of professional golfers were selected. One sample was taken from the Professional Golfers Associa- Professiona