According to a Gallup poll, 11.55% of American adults have diabetes. Suppose a researcher wonders if the
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According to a Gallup poll, 11.55% of American adults have diabetes. Suppose a researcher wonders if the diabetes rate in her area is higher than the national rate. She surveys 150 adults in her area and finds that 21 of them have diabetes.
a. If the region had the same rate of diabetes as the rest of the country, how many would we expect have diabetes?
b. Suppose you are testing the hypothesis that the diabetes rate in this area differs from the national rate, using a 0.05 significance level. Choose the correct figure and interpret the p-value.
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a We would expect 16825 adults in the region t...View the full answer
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Related Book For 
Introductory Statistics Exploring The World Through Data
ISBN: 9780135163146
3rd Edition
Authors: Robert Gould, Rebecca Wong, Colleen N. Ryan
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