Question: A Quality Analyst wants to construct a control chart for determining whether five machines, all producing the same product, are under control with regard to

A Quality Analyst wants to construct a control chart for determining whether five machines, all producing the same product, are under control with regard to a particular quality variable. Accordingly, four units of putputs from each machine are collected: Machine Measurement 1 Measurement 2 Measurement 3 Measurement 4 M1 463 437 456 455 M2 466 453 408 442 M3 433 458 457 449 M4 446 441 423 461 M5 469 434 412 439 Does this process appear to be out of control? If yes, identify a machine using the factors of three sigma control limits. a. M1 b. M4 c. M3 d. M2 e. Process is in Control f. M5

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