- 8 Suppose That X1 And X2 Are Entered Into A Regression In Successive Steps That Is Model 1 Has Only X1 And Model 2 1 (77.05 KiB) Viewed 36 times
8) Suppose that X1 and X2 are entered into a regression in successive steps – that is, model 1 has only X1, and model 2
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8) Suppose that X1 and X2 are entered into a regression in successive steps – that is, model 1 has only X1, and model 2
8) Suppose that X1 and X2 are entered into a regression in successive steps – that is, model 1 has only X1, and model 2 has both X1 and X2. Show, using a Venn diagram, that the test of the significance of the change in R2 between model 1 and model 2 is the same as the t-test of the significance of the slope for X2 in model 2. (Hint: show that the piece of the pie is the same.).
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