A Crew of Mechanics at the Department of Transportation Garage

question 30

Short Answer

A crew of mechanics at the Department of Transportation garage make minor repairs to snowplows during the winter. The snowplows break down at an average rate of 4 vehicles per day and breakdowns are distributed according to the Poisson distribution. The mechanic can service an average of 7 vehicles per day with a repair time distribution that approximates a negative exponential distribution. Assume an 8 hour day.
-On average, how long does a snowplow wait before the mechanic can begin his repair?

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Definitions:

Supplies

Items used in the day-to-day operations of a business, often consumable in nature, such as office supplies, manufacturing materials, or maintenance necessities.

Equipment

Tangible property used in the operations of a business, such as machinery and tools, which are not intended for sale.

Incremental Borrowing Rate

The interest rate a company would have to pay if it borrows funds, used as a benchmark in lease agreements to calculate the present value of minimum lease payments.

Balance Sheet

A financial statement that shows a company's assets, liabilities, and shareholders' equity at a specific point in time.