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Using Statistics for Better Business Decisions by Bert G. Wachsmuth, Justin Bateh

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Chapter 6

Hypothesis Testing

Preview: It is one thing to develop a hypothesis but quite another to actually prove it beyond a reasonable doubt. Your intuition may lead you to believe that men and women who are obese are more likely to die early than those who are of normal weight. While that conclusion may seem logical, you cannot simply assume that it is true. In order to prove or disprove the hypothesis, you must first develop a series of experiments to determine the truth or falsehood of your assumption. You might look at the distributions of weight across a given population and compare that information to mortality statistics. In the case of early mortality and excess weight, the purpose of the study is to find out whether obese individuals ...

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