Question

A register nurse (RN) case manager at a group home was concerned because their teenage residents seemed to be very tired all of the time. The RN case manager knew that a national sleep study was done and that the average sleep per night for teenagers, the population value, was 8.3 hours. The RN case manager conducted a survey among their residents and asked them to report the average number of hours they slept per night. The RN case manager predicted that their residents slept less than the population. Use the following data from their sample of 10 teenage residents to answer questions #1 -7.

Resident	Average Hours Slept Per Night
A	4.5
B	6.2
C	8.5
D	5.0
E	4.0
F	6.7
G	7.0
H	6.0
I	7.5
J	4.5

Question 4

What is t? (round to the thousandths)

Question 5

What are the degrees of freedom?

Question 6

Find the critical value from Table T that needs to be obtained in order to reject the null hypothesis. (note: critical values can be either positive or negative).

Answer 1