A leading magazine reported at one time that the average number of weeks an individual is unemployed is 18.7 weeks. Assume that for the population of all unemployed individuals the population mean length of unemployment is 18.7 weeks and that the population standard deviation is 9.1 weeks. Suppose you would like to select a random sample of 210 unemployed individuals for a follow-up study. Find the probability that a single randomly selected value is between 17.6 and 19. P(17.6 < X < 19) =  Find the probability that a sample of size n=210 is randomly selected with a mean between 17.6 and 19. P(17.6 < ¯x < 19) =  Enter your answers as numbers accurate to 4 decimal places. Answers should be obtained using z-scores rounded to two decimal places.

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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A leading magazine reported at one time that the average number of weeks an individual is unemployed is 18.7 weeks. Assume that for the population of all unemployed individuals the population mean length of unemployment is 18.7 weeks and that the population standard deviation is 9.1 weeks. Suppose you would like to select a random sample of 210 unemployed individuals for a follow-up study.

Find the probability that a single randomly selected value is between 17.6 and 19.
P(17.6 < X < 19) = 

Find the probability that a sample of size n=210 is randomly selected with a mean between 17.6 and 19.
P(17.6 < ¯x < 19) = 

Enter your answers as numbers accurate to 4 decimal places. Answers should be obtained using z-scores rounded to two decimal places.

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