Question: Please show your work. 2. Each week, a computer store sells an average of 100 sets of external hard drive. Weekly demand is normally distributed

Please show your work. Please show your work. 2. Each week, a computer

2. Each week, a computer store sells an average of 100 sets of external hard drive. Weekly demand is normally distributed with a standard deviation of 4 sets. The store orders hard drives from a regional distributor. Each order is filled in one week. The cost of placing each order is $100, and the weekly cost of holding one set of hard drive in inventory is $2. The per-unit stockout cost is assumed to be $10. The store is willing to assume that all demand is back-logged. (a) (2) Determine a good size of order. (b) (3) Determine a good reorder point. (c) (2) Determine a good size of order if the time for the new order to arrive has a mean of 1 week and standard deviation of 1 week. (d) (3) Continue part (c), determine a good reorder point. (You have to use the following critical point for standard normal distribution: 20.5=0.0.20.55 = 0.1, 20.6 = 0.2, 20.65 = 0.3, 20.7 = 0.5, 20.75 = 0.6. zo.8 = 0.8. 20.85 = 1.0. 20.9 = 1.2. 20.95 = 1.6. 20.99 = 2.3, 20.999 = 3.0. If you can not find the exact number, please use the closest number as an approximation.)

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