Analyze the data in the problems listed below using median and up/ down run tests with z = ± 2.

QUESTION:

Analyze the data in the problems listed below using median and up/ down run tests with z = ± 2.

a. Given the following run test results of the process output, what do the results of the run tests suggest about the process?

Test                                                     z – score

Median …………………………       + 1.37

Up/ Down ………………………      + 1.05

b. Twenty means were plotted on a control chart. An analyst counted 14 runs above below the median and 8 up and down runs. What do the results suggest about the process?

c. Problem 8.

d. Problem 7.


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