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What is the Fundamental Flaw in his Procedure?

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Tom Smith wants to test the hypothesis that adult men have a mean weight that is greater than 150 pounds. Tom surveys the adult male members of his family and obtains 40 sample values, which lead him to support the alternative hypothesis that the population mean is greater than 150 pounds.

What is the fundamental flaw in his procedure?

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Solution Summary

This Solution discusses sampling methods and the flaw proposed by this question.

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Tom is trying to test a hypothesis about men IN GENERAL (i.e. in the population). In statistics, we often try to estimate the answer to such a hypothesis using a sample, since it is impractical to measure each and every ...

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