Mathematics, 17.03.2020 02:05 enthusiastfranklin
A leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 29 weeks. Assume that the length of unemployment is normally distributed with population mean of 29 weeks and the population standard deviation of 9 weeks. Suppose you would like to select a random sample of 38 unemployed individuals for a follow-up study.
a. Find the probability that a single randomly selected value is greater than 27.6.
b. Find the probability that a sample of size n=80 is randomly selected with a mean greater than 27.6.
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A leading magazine (like Barron's) reported at one time that the average number of weeks an individu...
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