Course Solutions Uncategorized (Answered) : Instructor-created question Question Help * An operator is checking items for use in calculating a p-chart using 3 sigma limits. H

(Answered) : Instructor-created question Question Help * An operator is checking items for use in calculating a p-chart using 3 sigma limits. H

June 27, 2024June 27, 2024| adminadmin| 0 Comment| 7:38 pm
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Instructor-created question Question Help * An operator is checking items for use in calculating a p-chart using 3 sigma limits. He has taken 20 samples and calculates UCL-,1389 and LCL-,0231. There were 324 defects total and the std deviation is.0193. How many parts did he check per per sample? OA, 200 OB. 100 c. 210 ○ D. 175 OE, 300

Expert Answer

solution

UCL = P+ Z * st. dev

0.1389 = p + 3 *0.0193

p = 0.081

P = total of defects / total of unit sampled (k*n)

n = 200

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