Obesity 2016. In 2016, the Centers for Disease Control and Prevention reported that 36.5% of adults in the United States are obese. A county health service planning a new awareness campaign polls a random sample of 750 adults living there. In this sample, 228 people were found to be obese based on their answers to a health questionnaire.

Do these responses provide strong evidence that the 36.5% figure is not accurate for this region? Correct the mistakes you find in a student’s attempt to test an appropriate hypothesis.

There is more than a 99.98% chance that the stated percentage is correct for this region.

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Ho: p = 0.365 HA: p < 0.365 SRS, 750 10 228 750 = 0.304; SD() = (0.304) (0.696) = 0.017 750 0.304 -0.365 2 = -3.588 0.017 P = P(-3.588) = 0.9998