Question: hi can u help with question c i cant figure out y i didnt get the correct snswer Question 32/16 marks/ Aldin Pharma Company (APC)


Question 32/16 marks/ Aldin Pharma Company (APC) manufictures and distributes various medications. One of their products. 15 mil. lubricating eye drops for dry eyes, like all other products, is subject to statistical process control. The overall average of the eight-sample means is 14.9960mL. The overall average of the eight-sample ranges is 0.1100mL. Three sigma control limits are applied in the statistical process control of this item. a) Determine the upper and lower control limits of the X-bar chart. x=14.196mLR=0.1100mLICL=xA1R=14,916(0,42)(0,11)=14,1448VQL=R+A2R=14.046+10.04121=15.0422 LCL=14.9448UCL=15.0422 b) Determine the upper and lower control limits of the R chart. LL=D3R =(1.42)(0.1) =0.2112 L. chert LCL=0.0088 ULL=0.7112 Page 4 of 8 x ber chirt Intrep tation! Page 5 ot 8
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