As a rule of thumb, a t value (in absolute value) larger than 2.0 would indicate a significant effect of the predictor variable on the response variable.

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In many statistical analyses, particularly those using a 95% confidence level, a t-value (in absolute value) larger than 2.0 often indicates that the predictor variable has a statistically significant effect on the response variable, assuming a large enough sample size and a two-tailed test.

As a Rule of Thumb, a T Value (In Absolute