Question 183351
Determine if the mean daily sale in December is significantly lower than November 2008 with the following: 
a) State the null and alternative hypothesis and explain how it is derived.
Ho: u(december)-u(november) = 0
Ha: u(december)-u(november) < 0
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b) Which would be an appropriate test for this case?
Two-Sample T test
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c) State the assumptions made in performing this test and is it reasonable?
d) Perform an appropriate hypothesis test with alpha=0.05 using critical value approach
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You need to determine the two sample means in order to conduct the test.
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Cheers
Stan H.