Question # 3: The time needed to complete a production process is normally distributed with a mean of 120 minutes and a standard deviation of 20 minutes. Answer the following questions. a. What is the probability of completing the production process in one and a half hours or less (to 4 decimals)? b. What is the probability that a student will complete the production in more than one and a half hours but less than 100 minutes? c. Assume that the factory has 90 products that need to go through this production process in 140 minutes. How many products do you expect will be unable to complete the production process in the allotted time (to the nearest whole number)?
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