Question: 3 The number of processing errors per 100 purchase orders is monitored by a company with the objective of eliminating such errors totally. Table shows

3 The number of processing errors per 100 purchase orders is monitored by a company with the objective of eliminating such errors totally. Table shows samples that were selected randomly from all purchase orders. Sample Processing errors Sample Processing errors 1 s 14 3 2 4 15 6 3 2 16 l 4 3 1T 5 5 4 13 2 a T 19 6 T 5 2i] 4 E T 21 2 9 ll 22 3 ll} 4 23 2 ll 2 24 l 12 5 25 2 13 4 26 5 i) Plot an appropriate 99 % control limits chart using EXCEL. ii) Is it essential to construct revised control chart? Give a reason to support your

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