Do not include anything other than numbers in your responses. For example, do not include comma or dollar sign in your numbers. As a rule of thumb, keep 2 decimal places for larger numbers and 3 decimal places for smaller numbers less than 1.

Demand for walnut fudge ice cream at the Sweet Cream Dairy can be approximated by a normal distribution with a mean of 110 gallons per week and a standard deviation of 18 gallons per week. The new manager desires a service level of 80 percent. Lead time is 4 days, and the dairy is open seven days a week (Hint: work in terms of weeks).

A) What is the Z value for the desired service level?

B) How many (fraction of) "weeks" is the lead time?

C) If we use a continuous inventory system, what safety stock level would be consistent with the desired service level?

D) If we use a continuous inventory system, what ROP would be consistent with the desired service level?