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Problem 2

 

9.9 Inference Procedures to Compare Two Population Proportions: Independent Sampling

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Problem 4

Which sex exercises more?  A recent poll of 1000 men revealed that 390 of them exercise at least three days per week.  A similar poll of 800 women revealed that revealed that 256 of them exercised at least three days per week.  Use a 2.5% significance level to test the claim that the proportion of men exercise three or more days per week is greater than the proportion of women.

 

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