Hey, I'm having a hard time with this exercise, thanks for helping.

The average life expectancy of computers produced by Ahmadi, Inc. is 6 years with a standard deviation of 10 months .Assume that the lives of computers are normally distributed.Suggestion:For this problem, convert ALL of the units to months.

a. What are the minimum and the maximum life expectancy of the middle 95% of the computers' lives?Give your answers in months and do not round your answers.

b. The company is expecting that only 104 of this year's production will fail in less than 3 years and 8 months.How many computers were produced this yea