Use the results from a survey of a simple random sample of 1258 adults. Among the 1258 respondents, 72% rated themselves as above average drivers. We want to test the claim that than 13/20 of adults rate themselves as above average drivers.

a. Regardless of the conclusion reached from the hypothesistest, is it possible that more than 13/20 of adults can be above averagedrivers?

A.

No. Assuming quality of driving can bequantified, half of all adults must have driving quality less than or equal to the mean.

B.

Yes. Assuming quality of driving can bequantified, a distribution that is extremely skewed to the right would be the most promising scenario for more than this proportion of adults to have driving quality that is above the mean.

C.

Yes. Assuming quality of driving can bequantified, a distribution that is extremely skewed to the left would be the most promising scenario for more than this proportion of adults to have driving quality that is above the mean.

D.

No. It is impossible to compare the quality of differentadults' driving.

Click to select your answer and then click Check Answer.