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Unformatted text preview: figure. We gather data for an hour and find that 3 customers arrive. Test the hypothesis that 3 or fewer would arrive if the null were true. Use the .05 level of significance. The 30day mortality associated with intracranial hemorrhage is 16%. We try a new drug on 40 patients, a drug that is supposed to reduce mortality. Of those 40 patients, 4 die. Test the hypothesis that 4 or fewer would die if the null hypothesis were true. Use the .05 level of confidence. A significant finding would indicate that the drug may have an effect. Failure to find significance would indicate that the results might be due to random variation alone. Questions?...
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 Fall '11
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