Anna repairs television sets. Anna currently takes an average of 2.15 hours to repair a television set with standard dev

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Anna repairs television sets. Anna currently takes an average of
2.15 hours to repair a television set with standard deviation 40
minutes. Customers arrive at Anna’s shop according to a Poisson
process on the average of once every 2.5 hours. Anna works alone
nine hours a day. She is considering purchasing a new piece of
equipment that reduces her average repair time to 2 hours with
standard deviation as before
A) What is your advice to Anna based on operational
characteristics? Give numerical evidence in support of your
answer
B) What other information do you need to conduct a
comprehensive analysis? Be specific when answering this part