Quiz:Quiz #4 (Week 9)

Question 4

This Quiz:9 pts possible

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A binomial experiment is given. Decide whether you can use the normal distribution to approximate the binomial distribution. If youcan, find the mean and standard deviation. If youcannot, explain why.

A survey of adults found that 55% have used a multivitamin in the past 12 months. You randomly select 40 adults and ask them if they have used a multivitamin in the past 12 months.

Select the correct answer belowand, ifnecessary, fill in the answer boxes within your choice.

A.

No, because nq<5.

B.

No, because np<5.

C.

Yes, the mean is

nothing

and the standard deviation is

nothing

.

(Round to two decimal places asneeded.)