According to a recent poll, 20% of adults in a certain area have high levels of cholesterol. They report that such eleva

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According To A Recent Poll 20 Of Adults In A Certain Area Have High Levels Of Cholesterol They Report That Such Eleva 1 (22.14 KiB) Viewed 12 times

According To A Recent Poll 20 Of Adults In A Certain Area Have High Levels Of Cholesterol They Report That Such Eleva 2 (31.39 KiB) Viewed 12 times

According to a recent poll, 20% of adults in a certain area have high levels of cholesterol. They report that such elevated levels "could be financially devastating to the regions healthcare system and are a major concem to health insurance providers. According to recent studies, cholesterol levels in healthy adults from the area average about 206 mgid, with a standard deviation of about 30 mg/dl, and are roughly Normally distributed Assume that the standard deviation of the recent studies is accurate enough to be used as the population standard deviation. If the cholesterol levels of a sample of 47 healthy adults from the region is taken, answer parts a through d a) What shape will the sampling distribution of the mean have? OA. The sampling distribution of the mean is skewed right OB. The sampling distribution of the mean is normal OC. The sampling distribution of the meanis skewed left. OD. There is not enough information to determine the shape of the sampling distribution b) What is the mean of the sampling distribution? mgid c) What is the standard deviation? SD)- mgid (Round to two decimal places as needed) d) If the sample size were increased to 90, how would your answers to parts ac change? For part a, the shape of the distribution would For part b, the mean of the sampling distribution would For parte the standard deviation of the sampling distribution would mg/dl 800 mg (Round to two decimal places as needed)
a) What shape will the sampling distribution of the mean have? A. The sampling distribution of the mean is skewed right. B. The sampling distribution of the mean is normal. C. The sampling distribution of the mean is skewed left. OD. There is not enough information to determine the shape of the sampling distribution. b) What is the mean of the sampling distribution? pe mg/dL c) What is the standard deviation? SD(Y) = mg/dL (Round to two decimal places as needed.) d) If the sample size were increased to 90, how would your answers to parts a-c change? For part a, the shape of the distribution would For part b, the mean of the sampling distribution would For part c, the standard deviation of the sampling distribution would L mg/dL. SD(Y)= mg/dL. (Round to two decimal places as needed.)