To Have a Frame of Reference Against Which to Compare

question 24

Multiple Choice

To have a frame of reference against which to compare experimental findings,a scientist must

• A)study two groups: a control group and an experimental group.
• B)eliminate all expectations that might cause a biased interpretation of the results.
• C)have other scientists look at the results.
• D)do nothing;a "frame of reference" is not necessary.

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Definitions:

Statistic

Numeric characteristic of a sample.

Region

An area or division, especially part of a country or the world having definable characteristics but not always fixed boundaries.

T-statistic

In statistical testing, it represents the calculated difference between sample means relative to the variability observed in the samples, serving as basis for hypothesis testing.

Negative Value

A numerical value less than zero, indicating a deficit or decrease when compared to a baseline of zero.