## Math 221B Students Who Spent More Than 20 Hours

Students who spent more than 20 hours a week playing video games are called “heavy gamers. ” University officials want to use a confidence interval to estimate the true proportion of students on academic probation that are heavy gamers. There are 342 students on academic probation in the study, and 127 of them are heavy gamers. Fill in the blanks so as to tell whether the requirements for the confidence interval have been satisfied, and why or why not. The requirements [–A–] been satisfied. It [–B–] that both np^ and n(1?p^)are greater than 10. Options: [–A–][–B–]1. have2. have not3. is true4. is not true

## MATH 221B Students who spent more than 20 hours

Question
Students who spent more than 20 hours a week playing video games are called “heavy gamers.” University officials want to use a confidence interval to estimate the true proportion of students on academic probation that are heavy gamers. There are 342 students on academic probation in the study, and 127 of them are heavy gamers. Fill in the blanks so as to tell whether the requirements for the confidence interval have been satisfied, and why or why not.

The requirements [–A–] been satisfied. It [–B–] that both np^ and n(1?p^)

are greater than 10.

Options:

[–A–]

[–B–]

1.
have

2.
have not

3.
is true

4.
is not true