4. In which situation is a hypothesis test most likely to end with a significant result?A)

15 subjects in each comparison group and a very effective treatment.

B)

80 subjects in each comparison group and a very effective treatment.

C)

15 subjects in each group and a barely effective treatment.

D)

80 subjects in each group and a barely effective treatment.

5. In which situation is a hypothesis test most likely to end without a significant result?A)

15 subjects in each comparison group and a very effective treatment

B)

80 subjects in each comparison group and a very effective treatment

C)

15 subjects in each group and a barely effective treatment

D)

80 subjects in each group and a barely effective treatment

6. A study asked 500 men who had prostate cancer about their consumption of 50 different foods. One of the foods is found to have a statistically significant relationship to prostate cancer. The most likely reason for this is___A)

That the food definitely has a relationship to prostate cancer

B)

You would expect to see one significant result when you carry out 50 significance tests.

C)

Statistical significance does not imply practical significance

D)

There is a third confounding variable contributing to the results