Suppose we have the following regression model yi-B0+B1xi1+B2xi2+B11 2 xil +B22 2 xi2 +B12xi1xi2+E How to test whether there are quadratic effects? Test interaction effect? Now supposeß22-D0. How to...


Suppose we have the following regression model<br>yi-B0+B1xi1+B2xi2+B11 2 xil +B22 2 xi2 +B12xi1xi2+E<br>How to test whether there are quadratic effects? Test interaction effect?<br>Now supposeß22-D0. How to interpret the coefficients B2 and B12?<br>

Extracted text: Suppose we have the following regression model yi-B0+B1xi1+B2xi2+B11 2 xil +B22 2 xi2 +B12xi1xi2+E How to test whether there are quadratic effects? Test interaction effect? Now supposeß22-D0. How to interpret the coefficients B2 and B12?

Jun 10, 2022
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