The T-Test for the Difference Between the Means of Two

question 100

Multiple Choice

The t-test for the difference between the means of two independent populations assumes that the respective:

• A)sample sizes are equal.
• B)populations are normal.
• C)means are equal.
• D)All of these choices are true.

Determine the strength of a correlation using correlation coefficients.

Recognize the application and interpretation of the coefficient of determination.

Identify and apply the appropriate correlation coefficient type (Pearson, Spearman, Point Biserial, Phi) based on the level of measurement of variables.

Understand the visual representation of different types of correlations in scatterplots.