IT371W11vmrA3

IT371W11vmrA3 - New Sample 36 25 20 22 31 and 38 Average...

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IT 371 Assignment #3 Vanessa Reapor 1.   X-bar:  All samples fall within the control limits Service Person Sample 1 Sample 2 Sample 3 Sample 4 1 40 30 35 18 number of sample = 4 samples 2 30 17 21 15 size of sample = 6 service persons 3 16 18 26 31 A2 0.48 3 4 13 30 29 35 D3 0 5 22 18 15 21 D4 2.004 6 23 13 23 25 x-bar 24 21 24.83333333 24.16666667 R 27 17 20 20 x-double-bar 23.5 R-bar 21 x-bar chart UCL 33.643 LCL 13.357 R chart UCL 42.084 LCL 0
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0 5 10 15 20 25 30 35 40 1 2 3 4 Center UCL LCL X-bar R-Chart:  All samples fall within the control limits 0 5 10 15 20 25 30 35 40 45 1 2 3 4 Center UCL LCL R 2.  See X-Bar Chart and R Chart.
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Unformatted text preview: New Sample: 36, 25, 20, 22, 31 and 38. Average: 28.7 Range: 18 3. Based on all of the results, we conclude that there is no need to call for corrective action. This is because all the samples (X-Bar Chart and R Chart) fall within the control limits, and therefore proving the process is presently in control....
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This note was uploaded on 11/14/2011 for the course IT 371 taught by Professor Cowen during the Winter '07 term at Cal Poly.

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IT371W11vmrA3 - New Sample 36 25 20 22 31 and 38 Average...

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