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You must decide on how much safety stock to carry. Past records indicate that the standard deviation of demand is 33 units per week. The item you are investigating is sourced overseas and arrives via barge, which on average takes half a year. If you desire to have a 95% service level, how much safety stock would you recommend? Round the safety stock to the nearest unit (0 dp*)

If a company has a safety stock of 543 units for a product that has a standard deviation of demand of 222.7 units per day and a lead time of one week, what is their average service level in decimal percentage rounded to 4 decimal places?

What is the recommended safety stock for a firm that desires a 98% service level when the average lead time is one month and yearly demand over the last 10 years is as follows?

31 260 278 181 222 118 166 81 281 288

Round the safety stock to the nearest unit (0 dp)

If the current safety stock level is found to be 27 units, what service level is the firm

currently working at? (decimal format of the percentage rounded to 4 dp)