Three Variables Are Related and Two of Them Are Plotted

question 94

Multiple Choice

Three variables are related and two of them are plotted in a figure.If the variable that is not measured on either the x-axis or the y-axis changes,then there is

• A) a movement along the drawn curve.
• B) a shift in the curve.
• C) no impact on the curve because the variable is not measured on either of the axes.
• D) either a shift in the curve or a movement along the curve, but more information is needed to determine which.
• E) None of the above answers is correct.

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Definitions:

Null Hypothesis

A statement used in statistics that proposes there is no significant difference or effect, serving as the starting point for testing.

Significance Level

A threshold in hypothesis testing that determines whether a result is statistically significant; often denoted by alpha (α).

Partitioning

The process of allocating the total sum of squares and degrees of freedom to the various components.

Sum of Squares

A statistical technique used to describe the total variation or dispersion of a set of values around the mean; used in various analyses, including variance and regression.