Consider the control chart in Exercise 12.1, part ( b) :
a. Perform a median run test and an up/down run test, using 95.5 percent confidence intervals.
b. Are the medication error patterns random?
Exercise 1:
The Chief Nursing Officer (CNO) is concerned about medication errors in two hospital units. Collection of data over a year resulted in Table EX 12.1.
![1949_Table.png](https://secure.tutorsglobe.com/CMSImages/1949_Table.png)
a. Using a 95.5 percent confidence level, calculate the UCL and LCL for an appropriate control chart for each unit.
b. Construct the charts and identify any observations that are beyond the control limits.