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HW4 solution

HW4 solution - Test Results for Xbar Chart of Ex8.25All...

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8.5. (a) Potential: (b) Actual: (c)
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8.6. USL = 200 + 8 = 208; LSL = 200 – 8 = 192 (a) Potential: The process produces product that uses approximately 64% of the total specification band. (b) Actual: (c) The current fraction nonconforming is: If the process mean could be centered at the specification target, the fraction nonconforming would be:
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8.25. MTB > Stat > Control Charts > Variables Charts for Subgroups > X-bar R
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Unformatted text preview: Test Results for Xbar Chart of Ex8.25All TEST 1. One point more than 3.00 standard deviations from center line. Test Failed at points: 2, 3 The chart has a couple out-of-control points, and the R chart is in control. This indicates that the operator is not having difficulty making consistent measurements. (b) (c) (d) USL = 100 + 15 = 115; LSL = 100 – 15 = 85 8.26. (a) (b) (c) specs: 50 ± 10...
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