Multiple Choice
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?
A) 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.
B) 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.
C) 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.
D) 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.
Correct Answer:

Verified
Correct Answer:
Verified
Q3: Progressive Insurance would like to test the
Q4: The approximate standard error of the difference
Q5: When conducting a hypothesis test comparing two
Q6: The pooled variance is used to calculate
Q7: Progressive Insurance would like to test the
Q9: The Centers for Disease Control (CDC)would like
Q10: The test statistic for hypothesis tests comparing
Q11: The Centers for Disease Control (CDC)would like
Q12: The degrees of freedom for the appropriate
Q13: The hypothesis statement H0: µ1 - µ2