Posted by **need help** on Wednesday, April 6, 2011 at 4:12pm.

Question 1

A school psychologist reports that the mean number of hours the students at this school sleep each night is 8 hours. The students believe the mean is not 8 hours. To find an estimate of the true mean, they select a random sample of 15 students from their school and ask how many hours each slept last night.

A stemplot and boxplot of the numbers of hours are shown here.

## Answer This Question

## Related Questions

- AP Statistics - A school psychologist reports that the mean number of hours the ...
- statistics - The number of hours that college students sleep on a week night is...
- advanced alh - The number of hours that college students sleep on a week night ...
- Math - Sorry about last post. :( Graph: Students Hours _______________ Jack | 4....
- statistics - The weekly study times for all students in a school are normally ...
- statistics - researchers believe a new sleep on average 10 hours per night...
- Statistics - Suppose that hours of sleep per night for single adults between 30 ...
- statistics - College students average 7.8 hours of sleep per night with a ...
- statistics - (10 pts) Using diaries for many weeks, a study on the lifestyles of...
- Probability/Statistics - Using diaries for many weeks, a study on the lifestyles...

More Related Questions