SOLUTION: The recommended number of hours of sleep per night is 8 hours, but everybody "knows" that the average college student sleeps less than 7 hours. The number of hours slept last night

Question 975561: The recommended number of hours of sleep per night is 8 hours, but everybody "knows" that the average college student sleeps less than 7 hours. The number of hours slept last night by 10 randomly selected college students is listed below. Complete the following hypothesis test: Ho: μ = 7, Ha: μ < 7, α = 0.05.

8
6.9
6.1
6.6
7.5
8
7.6
7.3
7.8
5.7
(a) Find t. (Give your answer correct to two decimal places.)
(ii) Find the p-value. (Give your answer correct to four decimal places.)
(b) State the appropriate conclusion.
(1)Reject the null hypothesis, there is not significant evidence that the mean is less than 7.
(2)Reject the null hypothesis, there is significant evidence that the mean is less than 7.
(3)Fail to reject the null hypothesis, there is not significant evidence that the mean is less than 7.
(4)Fail to reject the null hypothesis, there is significant evidence that the mean is less than 7.

Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Your hypotheses do not go together.
It's either and or
and or
and but it cannot be what you have written.

Please repost.

RELATED QUESTIONS
The recommended number of hours of sleep per night is 8 hours, but everybody "knows" that (answered by Boreal,stanbon)

College students average 7 hours of sleep per night with a standard deviation of 40... (answered by stanbon)

College students average 8.7 hours of sleep per night with a standard deviation of 40... (answered by stanbon)

refer to the following information. About 60% of adults get less than the recommended 8... (answered by stanbon)

The number of adults sleep per night is normally distributed with a mean of 6.8 hours.... (answered by Boreal)

A recent article in a college newspaper stated that college students get an average of... (answered by Boreal)