Below is a partial multiple regression computer output based on a quadratic regression model. Test the usefulness of the variable X² in the model at = .05.

Name: Below is a partial multiple regression computer output based on a quadratic regression model. Test the usefulness of the variable X 2 in the model at = .05.
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The Answer of Below is a partial multiple regression computer output based on a quadratic regression model. Test the usefulness of the variable X² in the model at = .05.

Below Is a Partial Multiple Regression Computer Output Based on a Quadratic