Question: Safe delivery: A certain delivery truck can safely carry a load of 3400 pounds. The cartons that will be loaded onto the truck have a

Safe delivery: A certain delivery truck can safely carry a load of 3400 pounds. The cartons that will be loaded onto the truck have a mean weight of 80 pounds with a standard deviation of 20 pounds. Forty cartons are loaded onto the truck.
a. If the total weight of the 40 cartons is 3400 pounds, what is the sample mean weight?
b. What is the probability that the truck can deliver the 40 cartons safely?

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