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

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 238 213 217 209 M2 221 219 223 208 M3 224 226 209 238 M4 211 232 239 223 M5 215 241 237 219 Does this process appear to be out of control? If yes, identify a machine using the factors of three sigma control limits. O a M2 Ob Process is in Control M4 Od M1 O e M5 Of. M3

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