Suppose That We Find That Student Grades and Time Spent

question 33

Multiple Choice

Suppose that we find that student grades and time spent at parties move in opposite directions. A graph of the relationship between these two variables would curve

• A) upward and may be linear or nonlinear.
• B) downward and be linear.
• C) downward and may be linear or nonlinear.
• D) upward and be linear.

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Definitions:

One-Tailed T Test

A variation of the t-test that is used when a hypothesis predicts the direction of a potential difference between group means; it assesses whether this predicted difference is statistically significant in one specific direction.

Correlations

A statistical measure that expresses the extent to which two variables change together.

Groups

Collections of subjects, items, or observations often categorized based on specific characteristics for analysis.

Two-Tailed T Test

A statistical hypothesis test used to determine if there is a significant difference between the means of two groups, with no presumption about the direction of the difference.