An Assumption for a Significance Test of the Correlation Coefficient

question 26

Multiple Choice

An assumption for a significance test of the correlation coefficient is that in the populations,

• A)the variance of each variable is the same.
• B)the variance of the deviation scores for each variable is the same.
• C)the variance of each variable is the same at each point of the other variable.
• D)the variance of the squared deviations of each variable is the same at each point of the distribution of the squared deviations of the other variable.

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Definitions:

Axial Surface

A surface that connects the hinge lines in a fold.

Overturned Anticline

A geological fold where the layers have been tilted past vertical, making the older layers overlie the younger ones.

Inclined Syncline

A fold in sedimentary strata that slopes downward on both sides from the crest.

Sand-sized Grains

Particles of rock or mineral which fall within a specific size range, typically between 0.0625 and 2 millimeters, characteristic of sandstones.