Analyze the data in the following problems using median and up/down run tests with z = ± 2. a. Given the following run test results of 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/down runs. What do the results suggest about the process? c. Problem 8. d. Problem 7