IT371W11vmrA3

IT371W11vmrA3 - 13.357 R chart UCL 42.084 LCL 0 R-Chart:...

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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 0.483 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
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Unformatted text preview: 13.357 R chart UCL 42.084 LCL 0 R-Chart: All samples fall within the control limits 2. See X-Bar Chart and R Chart. 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 - 13.357 R chart UCL 42.084 LCL 0 R-Chart:...

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