Health Insurers and the Federal Government Are Both Putting Pressure $\left[ \begin{array} { l l } 3.24 & 4.36\end{array} \right]$

question 64

Multiple Choice

Health insurers and the federal government are both putting pressure on hospitals to shorten the average length of stay (LOS) of their patients.In 1996,the average LOS for non-heart patients was 4.6 days.A random sample of 20 hospitals in one state had a mean LOS for non-heart patients in 2000 of 3.8 days and a standard deviation of 1.2 days.Calculate a 95 percent confidence interval for the population mean LOS for non-heart patients in the state's hospitals in 2000.

• A) \(\left[ \begin{array} { l l }
• 3.24 & 4.36
• \end{array} \right]\)
• B) \(\left[ \begin{array} { l l }
• 3.67 & 3.93
• \end{array} \right]\)
• C) \(\left[ \begin{array} { l l }
• 3.34 & 4.26
• \end{array} \right]\)
• D) \(\left[ \begin{array} { l l }
• 3.38 & 4.22
• \end{array} \right]\)
• E) \(\left[ \begin{array} { l l }
• 3.27 & 4.33
• \end{array} \right]\)

---

Definitions:

Eardrops

Medicated solutions applied in the ear canal to treat infections, relieve pain, or soften earwax.

Room Temperature

The temperature prevailing in a work, living, or storage room typically considered comfortable for humans, roughly about 20 to 22 degrees Celsius (68 to 72 degrees Fahrenheit).

Pinna

The visible part of the ear located outside the head, which functions to collect and direct sound waves into the ear canal.

Instillation Position

A specific body position used to facilitate the administration of medications or treatments into body cavities.