S0015 [Source: : Maricle et al. (2007). Journal of Nursing Care Quality 22(1):20-27.]
A project examined the accuracy of medication administration by nurses at a 550-bed tertiary care hospital in western New York. Thirty nurses from three hospital units agreed to be observed as they administered medications. Results are summarized in the following table.
Q1. Provide a 95% confidence interval for the overall error percentage (i.e. 4.9%).
Q2. What is the error incurred in using 4.9% for estimating the overall error percentage?
Q3. Suppose you were asked to examine if there was a difference of the percentage of medication errors across the three units. Perform an appropriate analysis.
Q4. Give one limitation of this study.