The maker of electric fuses checks 500 fuses each day for defects. The number of defective fuses,
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The maker of electric fuses checks 500 fuses each day for defects. The number of defective fuses, along with the proportion of defective fuses for 24 days, is shown in the following table.
For the p chart, find the values for the central line, UCL, and LCL.
Transcribed Image Text:
Day Number Defective 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Total 26 32 37 16 28 31 42 22 31 28 24 35 30 34 39 26 23 33 25 25 32 23 34 20 696 Proportion Defective 0.052 0.064 0.074 0.032 0.056 0.062 0.084 0.044 0.062 0.056 0.048 0.070 0.060 0.068 0.078 0.052 0.046 0.066 0.050 0.050 0.064 0.046 0.068 0.040
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To construct a pchart we need to calculate the central line upper control limit UCL and lower contro...View the full answer
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Related Book For
Basic Technical Mathematics
ISBN: 9780137529896
12th Edition
Authors: Allyn J. Washington, Richard Evans
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