HW Ch 6S Statistical Process Control

# HW Ch 6S Statistical Process Control - S6.5From Table S6.1,...

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S6.5 From Table S6.1, A 2 = 0.308, D 4 = 1.777, D 3 = 0.223 S6.13 S6.19 = Total number of unsatisfied patients/Total number surveyed = 122/700 = 0.1743 Analyzing the p chart, we see that there are no points that fall out-side of the control limits. However, we can see that on day 6 the number of unsatisfied patients is approaching the upper limit. The hospital might note the meal served that day and monitor future patient feedback on those menu items.

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S6.23 The chart indicates that there are no schools out of control. It also shows that 3 of 5 schools fall close to or below the process average, which is a good indication that the new math program has been taught as effectively at one school in the county as another. Whether or not the new math program is effective would require comparisons of this year’s test results with results from previous years (under the old program) or comparisons with national per-formance data. S6.24
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## This note was uploaded on 10/16/2009 for the course BUSQOM 1070 taught by Professor Shang during the Fall '09 term at Pittsburgh.

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HW Ch 6S Statistical Process Control - S6.5From Table S6.1,...

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