Use This Information to Answer the Following Questions

question 21

Essay

Use this information to answer the following questions.
Cars arrive at Speedy Lube at an average rate of 4 per hour.Arrivals can be assumed to follow the Poisson distribution.The sole mechanic who works at Speedy Lube spends an average of 12 minutes changing each car's oil and filter.The standard deviation of service time is 2 minutes and service time distribution is arbitrary.
-Refer to the information above.Assume that Speedy Lube has been acquired by a new owner who is planning an advertisement campaign that claims that each car would spend an average of 20 minutes in the shop inclusive of waiting time and service time.What should the mechanic's service rate be so as not to accuse the new owner of False advertising? Hint: Use Excel's Goal Seek function.

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Definitions:

Natural Increase

The growth in population size as a result of more births than deaths, excluding migration.

Infrastructure

The fundamental physical and organizational structures and facilities needed for the operation of a society or enterprise.

Population Density

The measure of the number of people living per unit of area, commonly expressed as people per square kilometer or square mile.

Central City

The core or downtown area of a city where there is a concentration of business, entertainment, and government activities.