Welding service for construction and automotive repair jobs

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Reference no: EM131124806

Gubser Welding, Inc., operates a welding service for construction and automotive repair jobs. Assume that the arrival of jobs at the company's office can be described by a Poisson probability distribution with an arrival rate of three jobs per 8-hour day. The time required to complete the jobs follows a normal probability distribution, with a mean time of 1.9 hours and a standard deviation of 1 hour. Answer the following questions, assuming that Gubser uses one welder to complete all jobs:

A. What is the average number of jobs waiting for service? If required, round your answer to three decimal places.

B. What is the average time a job waits before the welder can begin working on it? If required, round your answer to one decimal place.

C. What percentage of the time is Gubser's welder busy?

Reference no: EM131124806

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