Question

According to Time magazine (December 5, 2011), 18% of adult Americans suffer from an anxiety disorder. Suppose a test of 300 random college students showed that 50 suffered from an anxiety disorder.
a. How many out of 300 would you expect to have an anxiety disorder if the 18% is correct?
b. Suppose you are testing the hypothesis that the population proportion of college students suffering from an anxiety disorder is not 0.18 at the 0.05 significance level. Choose the correct figure and interpret the p-value.


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  • CreatedJuly 16, 2015
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