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Suppose that 75% of adult Americans agree that, while downloading music from the Internet and then selling it is

question is:

approximately Normal, with mean 0.75 and standard error 0.0612.

Binomial, with n=50 and p=0.75.

neither Normal, not Binomial.

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Question 1

Quiz 6

Due

Oct 20 at 11:59pm

Points

6

Questions

6

Available

Oct 17 at 8am - Oct 20 at 11:59pm

4 days

Time Limit

60 Minutes

Allowed Attempts

3

You may use the textbook and lab workbook.

Attempt History

12 minutes

6 out of 6

12 minutes

6 out of 6

18 minutes

3 out of 6

Score for this attempt:

out of 6 Submitted Oct 19

at 5:04pm This attempt

took 12 minutes.

Correct - the distribution of p-hat will not be approximately Normal if np and n(1-p) is greater than or equal

to 15. The sampling distribution of p-hat is never Binomial, because the sample proportion is not a count.

approximately Normal, with unknown mean and standard deviation.

The sampling distribution of the sample proportion is approximately normal with a mean equal to p and a st

15. If either one of the conditions is not met, the sampling distribution of the sample proportion

is neither approximately normal nor binomial.

The sampling distribution of the sample proportion is approximately normal with a mean equal to p and a st

15. If either one of the conditions is not met, the sampling distribution of the sample proportion

is neither approximately normal nor binomial.

Binomial, with n=200 and p=0.13.

approximately Normal, with unknown mean and standard deviation.

neither Normal, not Binomial.

approximately Normal, with mean 0.13 and standard error 0.0238

Suppose 13% of American adults believe that the highest priority of America is to protect freedom of speech. We

sampling distribution of the sample proportion of people who answer yes to the question is:

1 / 1 pts

Question 2

Nine percent of Americans say they are well informed about politics in comparison to most people. You randomly sam

1 / 1 pts

Question 3

Yes to the question?

0.6879

0.6808

Can not be determined.

0.3192

0.47

Remember that np and n(1-p) must be greater than or equal to 15 for you to be able to complete the problem

score. (phat - p)/sqrt(p(1-p)/n). Use the z-score and the z-table to find the correct probability.

Remember that np and n(1-p) must be greater than or equal to 15 for you to be able to complete the problem

score. (phat - p)/sqrt(p(1-p)/n). Use the z-score and the z-table to find the correct probability.

0.9925

0.0040

0.9960

0.0075

Can not be determined.

Suppose that 76% of Americans prefer Coke to Pepsi. A sample of 200 was taken. What is the probability

that at least sixty eight percent of the sample prefers Coke to Pepsi?

1 / 1 pts

Question 4