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July 29th, 2013, 07:03 AM   #1
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Statistics. Null and Alternative Hypothesis.

Question 4

A sociologist believes that women sleep longer per night on the weekend than men. Sixty one people were surveyed. The following summary statistics were determined from the sample.


a) State the null and alternative hypothesis in symbols and in words. b) Calculate the expected results for the hypothesis test sampling
distribution, assuming the null hypothesis is true. (i.e., name and graph of
sampling distribution, mean and standard error)
c) Identify the standard distribution that best approximates the sampling
d) Formulate the decision rule(use can use either critical test scores or
e) Determine the statistical sample results , the test statistic and p-value. f) Determine the conclusion in terms of the null and alternative
hypotheses. Do the sample results indicate that the sociologistís claim is supported at a = 5%?
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