In a 2003 article, Hui and Bell (Health and Place. 9:371-376) reported that among 2,428 boys aged 7 to 12 years, 461 were overweight or obese.
a. On the basis of that study, can we conclude that more than 15 percent of the boys aged 7 to 12 in the sampled population are overweight?
b. What is the p-value?
c. What was the null hypothesis?
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