Ten Samples of N = 5 Were Collected to Construct $\overline { x ^ { * } }$

question 45

Multiple Choice

Ten samples of n = 5 were collected to construct an $\overline { x ^ { * } }$ chart. The sample mean and range for each sample are shown in the table below. $$\begin{array} { | c c c | c c c | } \hline \text { Sample } & \text { Mean } & \text { Range } & \text { Sample } & \text { Mean } & \text { Range } \\\hline 1 & 215 & 15 & 6 & 224 & 21 \\2 & 204 & 20 & 7 & 205 & 27 \\3 & 160 & 10 & 8 & 184 & 12 \\4 & 226 & 19 & 9 & 207 & 16 \\5 & 232 & 24 & 10 & 212 & 17 \\\hline\end{array}$$ Calculate the empirical centerline for the R chart.

• A)20.8
• B)17.2
• C)18.1
• D)19.4

---

Definitions:

Bioterrorism Attack

The deliberate release of viruses, bacteria, or other germs to cause illness or death in people, animals, or plants.

Standard Precautions

Guidelines recommended by the Centers for Disease Control and Prevention (CDC) to reduce risk of transmission of bloodborne and other pathogens in hospitals.

Evacuation Routes

Pre-planned and clearly marked pathways designed to safely exit a building or area in case of emergency.

Oxygen Shut-Offs

Safety mechanisms in healthcare facilities designed to control or stop the flow of oxygen in the event of a fire.