Answer Happy

According to a survey in a country, 19% of adults do not own a credit card. Suppose a simple random sample of 700 adults is obtained Complete parts (a) through (d) below. C (a) Describe the sampling distribution of the sample proportion of adults who do not own a credit card. Choose the phrase that best describes the stupe of the sampling distribution of p below. O A. Not normal because ns006 and npl - p)< 10 OB. Not normal because ns0.05N and p(1 - P) 210 OC. Approximately normal because 0.05N and np(1 – p) = 10 OD. Approximately normal because ns0 OSN and np(1-P)< 10 Determine the mean of the sampling distribution of p H - (Round to two decimal places as needed.) Determine the standard deviation of the sampling distribution of . on- (Round to three decimal places as needed) (b) What is the probability that in a random sample of 700 adults, more than 23% do not own a credit card? The probability is (Round to four decimal places as needed.)

Interpret this probability If 100 different random samples of 700 adults were obtained, one would expect to result in more than 23% not owning a credit card (Round to the nearest Integer as needed) (c) What is the probability that in a random sample of 700 adults, between 18% and 23% do not own a credit card? The probability is a (Round to four decimal places as needed) Interpret this probability 100 different random samples of 700 adults were obtained, one would expect to result in between 18% and 23% not owning a credit card (Round to the nearest integer as needed) (d) Would it be unusual for a random sample of 700 adults to result in 126 or fewer who do not own a credit card? Why? Select the correct choice below and fill in the answer box to complete your choice (Round to four decimal places as needed) A. The result is unusual because the probability that is less than or equal to the sample proportion is which is less than 5% OB. The result is not unusual because the probability that is less than or equal to the sample proportion is OC The result is unusual because the probability that is less than or equal to the sample proportion is which is greater than 5% OD. The result is not unusual because the probability that is less than or equal to the sample proportion is which is greater than 5% which is less than 5%