SOLUTION: The Sleep Foundation recommends that people get at least 8 hours of sleep every night. Based on this information, your instructor feels that his students are not getting enough sle

Question 868983: The Sleep Foundation recommends that people get at least 8 hours of sleep every night. Based on this information, your instructor feels that his students are not getting enough sleep, and claims that they are in fact getting less than the recommended 8 hours of sleep each night.
To test this, on a randomly selected day, he surveyed several classes to determine how much sleep each of his students got the night before. The following data set represents how many hours of sleep 35 randomly selected students reported on the survey from the night before:
7.3 9.9 9.3 3.0
6.0 5.5 6.8 7.9
7.8 4.1 8.0 9.7
5.5 6.7 9.8 6.6
7.3 6.9 4.3 2.5
7.8 5.4 8.2 9.7
8.4 8.6 7.9 6.7
5.3 8.5 8.7 6.1
5.3 7.3 4.9
Test your instructor's claim at a level of significance of 2% using the Classical Method:

The following parts break down the four steps of the Classical Method, which you will use for the hypothesis test in this problem:
A) State the Hypotheses
B) Determine the Test Statistic.
C) Determine the Critical Value.
D) State the conclusion. It should be in terms of the problem (give me more than just Reject Ho or Do Not Reject Ho).

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!



Hi

Re TY, As You know there are No Excuses :)

Recommend numberempire.com(especially good when there is a large amount of date

 and stattrek.com for great over-all knowledge and appropriate Calculators.

Need the tools for statistics.

Ho: u = 8

Ha: u < 8

Sample: m = 6.96, s = 1.9

t =  = .04/.3212 = .1245

DF = 34, P(t <.1245) = .5492

level of significance of .02

.5492 > .02, Do Not Reject Ho  

RELATED QUESTIONS

Please help with this! I can not figure this out no matter what I do!

The Sleep... (answered by Theo)
The Sleep Foundation recommends that people get at least 8 hours of sleep every night.... (answered by ewatrrr)
It is recommended that an adult get 8 hours of sleep every night. To test whether mothers  (answered by Boreal)
Hello, this is a statistics problem. Is there a formula that I would use to find the... (answered by Theo)
Doctor suggest that most people need about 8 hours of sleep each night and stay healthy.... (answered by richwmiller,dabanfield,stanbon)
doctors suggest that most people need about 8 hours of sleep each night to stay healthy.... (answered by nerdybill)
doctors suggest that most people need about 8 hours of sleep each night to stay healthy.... (answered by edjones)
refer to the following information.
About 60% of adults get less than the recommended 8... (answered by stanbon)
According to one study, 61% of the population swallow at least one spider per year in... (answered by stanbon)