Check my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate completion. Return to question Annual demand for a product is 10,400 units; weekly demand is 200 units with a standard deviation of 50 units. The cost of placing an order is $75, and the time from ordering to receipt is four weeks. The annual inventory carrying cost is $0.75 per unit. a. To provide a 98 percent service probability, what must the reorder point be? (Use Excel's NORMSINV() function to find the correct critical value for the given a-level. Do not round intermediate calculations. Round "z" value to 2 decimal places and final answer to the nearest whole number.) Answer is complete but not entirely correct. Reorder point 67 X units b. Suppose the production manager is told to reduce the safety stock of this item by 80 units. If this is done, what will the new service probability be? (Use Excel's NORMSDIST() function to find the correct probability for your computed Z-value. Round your answer to the nearest whole number.) Answer is complete but not entirely correct. Service probability %