Mathematics, 24.10.2020 01:00 2002boo13
A leading magazine (like Barron's) reported at one time that the average number of weeks an
individual is unemployed is 27 weeks. Assume that for the population of all unemployed
individuals the population mean length of unemployment is 27 weeks and that the population
standard deviation is 4 weeks. Suppose you would like to select a random sample of 31
unemployed individuals for a follow-up study. Find the probability that a single randomly selected value is less than 26.
P(X < 26) = ___
Find the probability that a sample of size n = 31 is randomly selected with a mean less than 26.
P(M < 26) = ___
Enter your answers as numbers accurate to 4 decimal places.
Answers: 2
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