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Hey I have this regressive model here and need to use backwards elimination to remove non significant variables. Further, the task says that I should use ordinary standard error and a two tailed t-test on a significance level of 1%. I should also keep the constant even if its not significant.

So my first thought is that since the p value of both scan2d and scan3d are below 1% the variables are significant, so the model should be as it is?