According to a survey in a country, 16% of adults do not have any credit cards.

Question

According to a survey in a country, 16% of adults do not have any credit cards. Suppose a simple random sample of 400 adults is obtained. (a) Describe the sampling distribution of p, the sample proportion of adults who do not have a credit card. Choose the phrase that best describes the shape of the sampling distribution of p below. A. Not normal because n lessthanorequalto 0.06N and np(1 - p) greaterthanorequalto 10. B. Approximately normal because n lessthanorequalto 0.05N and np(1 - p) greaterthanorequalto 10. C. Not normal because n lessthanorequalto 0.05N and np(1 - p)

Explanation / Answer

first option is rightly picked

mean of the sampling distribution of proportion =0.16 as given on the top

please reply if there are further part to it

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