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Smoking in the US

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Smoking in the United States: Does the survey of the previous question provide good evidence that less than ¼ of all American adults smoked in the week prior to the survey?

a. State the hypotheses to be tested
b. If your null hypothesis is true, what is the sampling distribution of the sample proportion p-hat? Sketch this distribution.
c. Mark the actual value of p-hat on the curve. Does it appear surprising enough to give good evidence against the null hypothesis?

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Solution Summary

This solution discusses smoking in the US and hypothesis testing methods.

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