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11. The amount of time necessary for assembly lime workers to complete a product is a normal random variable with a mean of 15 minutes and a standard deviation of 2 minutes. (1) What is the probability that a product is assembled in less than 12 minutes? (2) What is the probability that a product is assembled in between 14 and 16 minutes? (3) What is the probability that a product is assembled in between 10 and 12 minutes? (4) What is the probability that a product is assembled in between 16 and 21 minutes? (5) What is the probability that a product is assembled in more than 11 minutes? (6) What is the probability that a product is assembled in more than 19 minutes? (7) 15% of the products require more than minutes for assembly. (8) 90% of the products require more than minutes for assembly