Biology Forums - Study Force

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, and using α = 0.01, which one of the following statements is true?

▸ Because the p-value is less than α, the CDC cannot conclude that the proportion of obese adults in the U.S. has increased this year when compared to last year.

▸ Because the p-value is greater than α, the CDC cannot conclude that the proportion of obese adults in the U.S. has increased this year when compared to last year.

▸ Because the p-value is less than α, the CDC can conclude that the proportion of obese adults in the U.S. has increased this year when compared to last year.

▸ Because the p-value is greater than α, the CDC can conclude that the proportion of obese adults in the U.S. has increased this year when compared to last year.

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