Health Care Costs Are Expected to Rise More Than 10

question 149

Multiple Choice

Health care costs are expected to rise more than 10 percent into 2011, according to a survey of insurers by Aon Consulting Worldwide. Which of the following would be a fixed cost in a hospital?

• A) An MRI machine
• B) Bandages
• C) Nurses
• D) Syringes

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Definitions:

μ

The symbol representing the mean (average) of a population in statistics.

T-Statistic

Re-defined: A value calculated from sample data during a t-test, used to assess the significance of the difference between two sample means.

α

Represents the level of significance in hypothesis testing, typically set at 0.05 or 5%.

P > .05

A statistical expression indicating that the probability of the observed data, or something more extreme, if the null hypothesis is true, is greater than 5%.