t-test for slope: Tests H0: beta = 0 (no linear relationship) versus Ha: beta is not equal to 0 (or one-sided). Test statistic: t = b / SE_b with df = n minus 2.
How to apply it: A significant result means the explanatory variable is a useful linear predictor of the response variable.
Course: AP Statistics · Unit: Inference for Quantitative Data: Slopes
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