A Research Article Based on a T Test for Independent

question 82

Multiple Choice

A research article based on a t test for independent means reports a result as "t(28) = 4.21, p < .01."

• A)The result was statistically significant.
• B)There were 30 participants in the study.
• C)The t score was 4.21.
• D)All of the above.

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Definitions:

Coefficient Of Determination

A statistical measure, often represented as R^2, indicating the proportion of the variance in the dependent variable that is predictable from the independent variables.

Least Squares Line

A straight line that minimizes the sum of the squared differences between observed values and values predicted by the line.

API Gravity

A measure of how heavy or light a petroleum liquid is compared to water, used in the oil industry.

Regression Line

A line through a scatterplot of data points that best expresses the relationship between those points, often used in predicting outcomes.