If the Cost of a Display Ad on Facebook Is

question 47

Multiple Choice

If the cost of a display ad on Facebook is $50,000 but it cost $5,000 in time for its development and maintenance,the incremental gain is $45,000.The gain divided by the cost of the program expressed as a percentage reveals a ROI of 900 percent.This example relates to:

• A) the return on investment model.
• B) the return of impressions model.
• C) the return on social media impact model.
• D) the return on target influence model.
• E) the return on earned media model.

Understand the role of medical imaging in the diagnosis and treatment of diseases.

Explain the positioning terminology used in radiologic procedures.

Understand the use of medical imaging in intervention procedures.

Understand the meanings of common abbreviations in radiology.

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Definitions:

Control Population

A group in an experimental study that does not receive the treatment and is used as a benchmark to measure how the other tested groups compare.

Significance Level

The threshold below which an observed result is considered statistically significant, usually denoted by alpha.

Sample Data

Data collected from a portion of a larger population, used to make inferences about the whole population.

P-Value

The p-value is a measure in statistical hypothesis testing representing the probability of obtaining a result at least as extreme as the observed one, assuming the null hypothesis is true.