This Question: 1 pt 5 of 8 This Quiz: 8 pts p Hour R HourR Hour R Hour x 1 3.35

Question

This Question: 1 pt 5 of 8 This Quiz: 8 pts p Hour R HourR Hour R Hour x 1 3.35 0.65 73.05 0.48 13 3.11 08 19 3.41 1.66 2 3.10 1.13 8 2.75 1.13 14 2.73 1.36 20 2.89 1.14 3 3.12 1.489 3.12 0.66 15 3.12 1.11 21 2.55 1.13 4 3.491.21 10 2.95 1.33 16 2.94 0.55 22 3.38 0.51 5 3.07 1.12 1 2.73 1.12 17 2.96 1.43 23 284 1.58 6 2.86 0.42 12 2.97 0.45 18 2.74 1.34 242.74 1.02 Based on the sampling done, the control limits for 3-sigma x chart are (round all intermediate calculations to three decimal places before procoeding with furthe Upper Control Limit (UCL?)-inches round your response to three decima,places Lower Control Limit (LCL?)-inches round your response to three decimal places). Based on the i-chart, the wire cutting process has been The control timits for the 3-sigma R-chart are (round all intermediate calculations to three decimal places before proceeding with further calculations) Upper Control Limit (UCLR)-inches (round your response to three decimal places) Lower Control Limit (LCLR) inches (round your response to three decimal places) Enter your answer in each of the answer boxes

Explanation / Answer

Xbarbar = 2.97

Rbar = 1.03

UCLx = Xbarbar +A2Rbar

LCLx = Xbarbar - A2Rbar

Value of A2 will depend on the sample size.

We assume that the sample size is 5

Then

UCLx = 2.97 + 0.577 x1.03 = 3.56

LCLx = 2.97-0.577x1.03 = 2.38

R limits

UCLR = D4Rbar = 1.03 x2.114 = 2.17

LCLR = D3Rbar =0

It can be seen that with n=5. the process is within limits.

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