Question: Using Excel, solve the 2 problems. Make sure to clearly label everything including the answers. Problem1: The useful life of a certain brand of tires

Using Excel, solve the 2 problems. Make sure to clearly label everything including the answers.

Problem1: The useful life of a certain brand of tires has been found to follow a normal distribution with a mean of 38,000 miles and standard deviation of 3,000 miles. A dealer orders 500 of these tires for resale. Approximately what number of tires ordered by the dealer will last between 40,000 and 45,000 miles? Problem2: The amount of time required per individual at a bank teller's window has been found to be normally distributed with a mean of 130 seconds and standard deviation of 45 seconds. Within what length of time do the 20 percent of individuals with the simplest transactions complete their business at the window

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