Kelly's Service Station Does a Large Business in Tune-Ups

question 36

Essay

Kelly's Service Station does a large business in tune-ups.Demand has been averaging 210 spark plugs per week.Holding costs are $0.01 per plug per week,and reorder costs are estimated at $10 per order.Kelly does not want to be out of stock on more than 1% of his orders.There is a one-day delivery time.The standard deviation of demand is five plugs per day.Assume a normal distribution of demand during lead time and a seven-day work week.
a.What inventory policy do you suggest for Kelly's station?
b.What is the average amount of safety stock for the reorder point in part (a)?
c.What is the total variable weekly cost including safety stock cost?

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Definitions:

Benchmark

A Benchmark is a standard or point of reference against which things may be compared or assessed.

Inventory Turnover Ratio

A metric showing how many times a company has sold and replaced its inventory over a specific period, indicating efficiency in sales and inventory management.

Inventory Accounting Method

Techniques used to calculate the cost of goods sold and value of inventory, including FIFO, LIFO, and weighted average cost methods.

Current Ratio

A financial metric assessing a firm's capability to settle debts due within a year.