The statistic used to test whether individual regression coefficients are different from zero in the population is:

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The t-test is used to test whether individual regression coefficients are different from zero in the population. This is because it evaluates the ratio of the sample estimate to its standard error, which allows us to determine how likely it is that the observed coefficient is different from zero in the population. The other options (A, C, D) are not appropriate for testing individual coefficients. The F-test is used to test the overall significance of a model, R² is not a valid statistical test, and b refers to the slope coefficient itself, not a statistical test.

The Statistic Used to Test Whether Individual Regression Coefficients Are