A Gallup poll examined the rate of obesity in America with a

A Gallup poll examined the rate of obesity in America with a survey 86,664 randomly sampled U.S. adults. Of the adults surveyed, 23,053 said that they were obese. Researchers believe more than 24.5% of the adults in the United States are obese. Select the appropriate null hypothesis.

Solution

Null hypothesis contains (partial) equality sign, and we want to compare proportion with 0.245, correct answer is (B)