A Handyman Specializes in Fixing Plumbing and Electrical Problems

Essay

A handyman specializes in fixing plumbing and electrical problems.Assume that 40% of the service calls that he gets relate to electrical problems,while 60% of the service calls relate to plumbing problems.On average,the time it takes to fix an electrical problem can range between 15 and 45 minutes,where all values between the minimum and maximum occur with equal likelihood.Moreover,the time it takes to fix a plumbing related problem can take a minimum of 15 minutes and a maximum of 60 minutes,where 30 minutes is the most probable time.
a.Use Crystal Ball to find the average time it takes the handyman to fix a given service call.Use 1000 replications.
b.What is the probability that it will take the handyman more than 45 minutes to complete a given service call?