In 2010, the CDC reported that 28% of US adults are obese. Researcher's in a particular state are interested in determining if the proportion of adults in their state is different from 28%.

The correct hypotheses in this problem are:

Ho: p > 0.28

Ha: p = 0.28

Ho: p = 0.28

Ha: p > 0.28

Ho: p = 0.28

Ha: p 0.28

Ho: p 0.28

Ha: p = 0.28

Ho: p < 0.28

Ha: p = 0.28

Ho: p = 0.28

Ha: p < 0.28

In 2010, the CDC reported that average body mass index of US adults was 28. A researcher is interested in determining if the average body mass index of adults in her state is more than 28.

The correct hypotheses in this problem are:

Ho: = 28

Ha: 28

Ho: 28

Ha: = 28

Ho: = 28

Ha: > 28

Ho: > 28

Ha: = 28

Ho: = 28

Ha: < 28

Ho: < 28

Ha: = 28

The following two hypotheses are tested:

Ho: The proportion of UF students who have seen a dentist this year is 60%

Ha: The proportion of UF students who have seen a dentist this year is less than 60%

A random sample of 400 UF students is taken and 228 have seen a dentist this year. The test statistic for this hypothesis test is

1.22

-1.83

-2.44

1.83

-1.22

2.44

The following two hypotheses are tested:

Ho: The proportion of UF students who have abused prescription drugs is 8%

Ha: The proportion of UF students who have abused prescription drugs is more than 8%

If the test statistic is 2.32, the p-value would be

0.9898

0.0102

0.0051

0.9796

0.0204