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Yoonie is a personnel manager in a large corporation. Each month she must review 16 of...

Yoonie is a personnel manager in a large corporation. Each month she must review 16 of the employees. From past experience, she has found that the reviews take her approximately four hours each to do with a population standard deviation of 1.2 hours. Let X be the random variable representing the time it takes her to complete one review. Assume X is normally distributed. Let X be the random variable representing the mean time to complete the 16 reviews. Assume that the 16 reviews represent a random set of reviews.

Find the 95th percentile for the mean time to complete one month's reviews.

a) Sketch the graph.

(b) Give the 95th Percentile. (Round your answer to two decimal places.)

Math   Statistics-And-Probability   
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