Question: 1) Using the fixed-time-period inventory model, and given an average daily demand of 200 units, 4 days between inventory reviews, 5 days for lead time,

1) Using the fixed-time-period inventory model, and given an average daily demand of 200 units, 4 days between inventory reviews, 5 days for lead time, 120 units of inventory on hand, a z of 1.96, and a standard deviation of demand of 3 units, which of the following is the order quantity?

2)Demand for an item is 1000 units per year. A processing fee of $10 will be charged for each order placed. The purchasing cost of the item is $20. The annual cost to carry an item in inventory is 20% of the item costs.

a)What is the optimal ordering quantity?

b)What is the annual ordering costs if the firm orders 75 units in each order?

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