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 144 140 133 134 M2 141 131 150 138 M3 141 136 135 144 M4 129 141 132 151 M5 148 127 139 150 Does this process appear to be out of control? If yes, identify a machine using the factors of three sigma control limits. a. M3 b. Process is in Control c. M2 d. M4 e. M1 f. M5

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