Use the following information to answer the next six exercises: Yoonle 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
Find the probability that one review will take Yoonle from 3.5 to 4.25 hours. Sketch the graph, labeling and scaling the hoiizontal axis. Shade the region corresponding to the probability.
Figure 7.16
b. P(_____
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