In a recent poll, the Gallup Organization found that 45% of adult Americans believe that the overall
Question:
(a) Compute the mean and standard deviation of the random variable X, the number of adults who believe that the overall state of moral values in the United States is poor based on a random sample of 500 adult Americans.
(b) Interpret the mean.
(c) Would it be unusual to identify 240 adult Americans who believe that the overall state of moral values in the United States is poor based on a random sample of 500 adult Americans? Why?
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a We have n 500 and p 045 X n p 500045 225 adult Americans b In a ...View the full answer
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