57:32 ok sk rences Problem 10-28 (Static) The following is a control chart for the average number of minor errors in 22

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57 32 Ok Sk Rences Problem 10 28 Static The Following Is A Control Chart For The Average Number Of Minor Errors In 22 1 (28.46 KiB) Viewed 13 times

57:32 ok sk rences Problem 10-28 (Static) The following is a control chart for the average number of minor errors in 22 service reports. UCL LCL a. Calculate the observed mean, expected mean, standard deviation and z value for the median and up/down test. Use z = +/-2 to compare your z test scores. (Negative amounts should be indicated by a minus sign. Round your answers to 2 decimal places.) Test Median Up/down Observed Median Up/down b. Based on your calculation conclude whether the test is random or non-random. Conclusion Expected Random Non-random Std. dev