A dry cleaning firm uses an average of 20 gallons of cleaning fluid a day.Usage tends to be normally distributed with a standard deviation of two gallons per day.Lead time is four days,and the desired service level is 92 percent.What amount of safety stock is appropriate under each of these conditions:
(i)Cleaning fluid is reordered every 45 days.
(ii)A fixed order size of 600 gallons is used.

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The Answer of A dry cleaning firm uses an average of 20 gallons of cleaning fluid a day.Usage tends to be normally distributed with a standard deviation of two gallons per day.Lead time is four days,and the desired service level is 92 percent.What amount of safety stock is appropriate under each of these conditions:
(i)Cleaning fluid is reordered every 45 days.
(ii)A fixed order size of 600 gallons is used.

A Dry Cleaning Firm Uses an Average of 20 Gallons