A manufacturer uses a c-chart to monitor the performance at the final inspection station for a vending machine. After inspecting 98 machines, a total of 931 defects were found. The probability of type I error for this control chart is equal to: a. 0.0053 b. 0.0032 c. 0.0049 d. 0.0044 e. 0.0058
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Average number of defects per machine = Total number of defects / Total number of machines Average number of defects per machine = 931 / 98 Average number of defects per machine ≈ 9.5 Show more…
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