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A sample of 25 day shift nurses is taken and they report a mean of 7.0...

A sample of 25 day shift nurses is taken and they report a mean of 7.0 and a standard deviation of 1.0 hours of sleep. A sample of 16 night shift nurses report a mean of 6.1 and a standard deviation of .8 hours of sleep. At an alpha of .05, do we have evidence that day shift nurses sleep on the average MORE than night shift nurses?

a. Null/Alternate Hypotheses

b. Test Statistic

c. Critical regions

d. Reject/Fail to Reject

e. Answer the question.

Math   Statistics-And-Probability   
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