Assignment_3 - process Proportion of process = 0.010143 =...

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0.49 0.49 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.51 0.51 0.51 More 0 5 10 15 20 25 30 Histogram Column R Bin Frequency
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0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.51 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.49 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.51 0.5 0.5 0.5 0.5 0.5 Process mean X-bar = 0.500 Nominal value = 0.500 Standard deviation σ = 0.002 Upper specification limit = 0.505 3*σ = 0.006 Lower specification limit = 0.495 Process capabiltiy 6*σ = 0.012 specification range = 0.010 Cp = Specication Range Cpk= Closest spec-X-bar Process Capability 3*σ = 0.82 = 0.77 = 0.817 = 0.774
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z for USL USL -X-bar z for LSL LSL -X-bar σ σ 2.32 2.58 2.321 2.580 Proportion of
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Unformatted text preview: process Proportion of process = 0.010143 = 0.004943 = 1.014% = 0.494% Total process output beyond specification = 1.509% Process is not capable Comment Therefore, this process is incapable of producing the shaft as required by toleranc output above USL from table output below LSL from table Process is not capable. As we can see in the histogram, process capability index (6 ) cover wider region than the specification. 0.49 Bin Frequency 0.51 30 0.49 0.49 0.5 0.49 1 0.5 0.5 2 0.5 0.5 3 0.5 0.5 3 0.5 0.5 8 0.5 0.5 14 0.5 0.5 22 0.5 0.5 25 0.5 0.5 15 0.5 0.5 6 0.51 0.5 4 0.51 0.51 2 0.51 0.51 0.51 More...
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This note was uploaded on 12/03/2009 for the course MECHANICAL ieng3000 taught by Professor Martin during the Spring '09 term at Conestoga.

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Assignment_3 - process Proportion of process = 0.010143 =...

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