The Centers for Disease Control (CDC) would like to test the hypothesis that the proportion of obese adults in the U.S. has increased this year when compared to last year. A random sample of 125 adults this year found that 56 were obese. Last year, a random sample of 140 adults found that 42 were obese. If Population 1 is defined as this year and Population 2 is defined as last year, the correct hypothesis statement for this hypothesis test would be
A) H0: p1 - p2 c 0; H1: p1 - p2 < 0.
B) H0: p1 - p2 = 0; H1: p1 - p2 × 0.
C) H0: p1 - p2 < 0; H1: p1 - p2 c 0.
D) H0: p1 - p2 c 0; H1: p1 - p2 > 0.
Correct Answer:
Verified
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