When Using Inferential Statistics All of the Following Assumptions Are

question 30

Multiple Choice

When using inferential statistics all of the following assumptions are accurate except:

• A) the sample must be drawn from the population about which inferences are being made
• B) the inferential statistics assume simple random sampling
• C) as long as the sample is drawn from a population that resembles the one about which inferences are to be made, the resulting statistic has value
• D) inferential statistics are addressed to sampling error only, they do not consider non-sampling errors

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Definitions:

Specificity

The ability of a test to correctly identify those without the disease or condition being tested for.

Positive Predictive Value

The probability that subjects with a positive screening test truly have the disease.

Prevalence

The total number of cases of a disease that exist in a particular population at a specific time.

False-Positive Diagnosis

An erroneous identification where a test incorrectly indicates the presence of a condition that is actually absent.