Question: Please send me answer in type form strictly prohibited handwritten solution don't use chatgpt Or copied content show your own work with step by step

Please send me answer in type form strictly prohibited handwritten solution don't use chatgpt Or copied content show your own work with step by step explanation specially mentioned formula and concept.

The following is a control chart for the average number of minor errors in 22 service reports. a. Determine the observed number of runs (median, and up/down), expected number of runs, standard deviation, and the ztast value for the median and up/down test. Use z=+l-2 to compare your z test scores. (Negative amounts, if any, should be indicated by a minus sign. Round your answers to 2 decimal places.) Please use the table below to summarize your answer. b. Based on your calculations, conclude whether the test is random or non-random.

c. Should the process be investigated due to nonrandom variation? (Yes or No)

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