SOLUTION: At a large department store, the average number of years of service is 13.5 years with a standard deviation of 6.2 years. If an employee is picked at random, what is the probabili

SOLUTION: At a large department store, the average number of years of service is 13.5 years with a standard deviation of 6.2 years. If an employee is picked at random, what is the probabili

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Question 927492: At a large department store, the average number of years of service is 13.5 years with a standard deviation of 6.2 years. If an employee is picked at random, what is the probability that the employee has worked for the company less than 5 years?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
mean = 13.5, sd = 6.2 ,
P( x < 5) = p(z < -8.5/6.2) = P(z < -1.371) = normalcdf(-100, -1.371) = .0852
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