Question: Quality control Case Study I: The numbers of alignment errors observed at final inspection of a certain model of airplane are shown below. Airplane number

Quality control

Case Study I: The numbers of alignment errors observed at final inspection of a certain model of airplane are shown below. Airplane number 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 Number of alignment errors 8 16 14 19 11 15 8 11 Airplane number 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 Number of alignment errors 9 9 14 11 9 10 22 7 28 9 11 18 12 9 8 21 12 23 16 9 25 15 (A) Construct an appropriate control chart that can be used to monitor future production. (B) What is the best estimate of the process capability? (C) What steps would you recommend taking to improve the process capability

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