E-Max uses the basic EOQ model to determine the order quantity. They used to buy electronics from a Korean supplier in Dubai with a lead-time of 5 days. Recently, the supplier has decided to close the warehouse in Dubai and deliver all items from Korea directly to customers in Oman with a lead time of 10 days. Under this situation, the economic order quantity (Q*) will: Select one a. decrease by a factor of two b. double c. remain the same d. increase, but not double e. None of them Given there are five (05) sample taken. The sample mean (X-bar) are; 8.51, 8.18, 11.07, 10.03, and 10.23 respectively. Also, Range values for these 5 samples are; 3.33, 2.61, 3.39, 4.39, and 6.49. If the upper control limit for X-bar chart is 11.95, what should be the most appropriate the sample size? Select one a. 3 b. 4 c. 5 d. 2 e. None is correct