Question: Given the following process control data for a normally distributed quality variable (three samples of size four each): Given the following information: Expected demand during

Given the following process control data for a normally distributed quality variable (three samples of size four each):

Given the following information: Expected demand during a lead time = 610 kg Standard deviation of demand during a lead time = 58 kg Demand during a lead time is distributed Normally Acceptable stockout risk during a lead time = 6 percent Refer: z-values table. a. What amount of safety stock is appropriate? (Round the final answer to the nearest whole number.) Safety stock kg b. At what level of inventory should this item be reordered? ROP kg

If the process is known to have a mean of 15 and a standard deviation of 3, what are the three sigma upper and lower control limits for an x-bar chart?

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