Where Is the Central Ray Directed for an AP Lumbosacral

question 14

Multiple Choice

Where is the central ray directed for an AP lumbosacral spine?

• A) L2
• B) L3
• C) Iliac crests
• D) The ASIS

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Definitions:

Confidence Interval

A range of values, derived from sample statistics, that are believed to contain the value of an unknown population parameter at a certain confidence level.

Sample Size

The number of observations or replicates included in a statistical sample.

Confidence Level

The probability that the value of a parameter falls within a specified range of values.

Population Standard Deviation

A measure of the dispersion or spread of all the data points in a population dataset.