I have the following model : Y = B1X + B2X + e. I want to test if B1 = B2, and also if B1 = B2 = 0. Any suggestions to which test that would be appropiate?
Thanks in advance.
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It's called a [contrast](https://en.wikipedia.org/wiki/Contrast_(statistics)). I have confidence that there are `R` packages that do this, though I do not know them offhand. – Dave Jun 09 '21 at 20:53