2024 – Problem 10 28 The following is a control chart for the average number of minor errors in 22 service reports a
Control Chart – 2024
Problem 10-28
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The following is a control chart for the average number of minor errors in 22 service reports. |
| a. |
Calculate the observed mean, expected mean, standard deviation and z value for the median and up/down test. (Negative amounts should be indicated by a minus sign. Round your answers to 2 decimal places.) |
| Test | Observed | Expected | Std. dev | z |
| Median | ||||
| Up/Down |
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I know some of these answers are incorrect. Please assist |
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