Barron's reported that the average number of weeks an individual is unemployed is 17.5 weeks. Assume that for the popula

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Barron S Reported That The Average Number Of Weeks An Individual Is Unemployed Is 17 5 Weeks Assume That For The Popula 1 (22.05 KiB) Viewed 11 times

Barron's reported that the average number of weeks an individual is unemployed is 17.5 weeks. Assume that for the population of all unemployed individuals the population mean length of unemployment is 17.5 weeks and that the population standard deviation is 4 weeks, Suppose you would like to select a sample of 40 unemployed individuals for a follow-up study. (a) Show the sampling distribution of x, the sample mean average for a sample of 40 unemployed individuals. 15.7 16.3 16.9 17.5 18.1 18.7 19.3. -1.8-1.2-0.6 0 0.6 1.2 1.8 weeks weeks X DO 5.5 9.5 13.5 17.5 21.5 25.5 29.5 38.2 38.8 39.4 40 40.5 41.2 41.8 weeks weeks (b) What is the probability that a simple random sample of 40 unemployed individuals will provide a sample mean within 1 week of the population mean? (Round your answer to four decimal places) 8861 (c) What is the probability that a simple random sample of 40 unemployed individuals will provide a sample mean within t decimal places.) 4292 week of the population mean? (Round your answer to four