9/25/2023 0 Comments Multiple regression minitabBut, remember that well stop eliminating variables once all remaining variables have p-values less than 0.05, which is the case here. A is not correct because it is possible that a backwards selection process will eliminate all variables. There are only 2 explanatory variables left in the model, so the degrees of freedom for the t-tests = 10 – 2 – 1 = 7. Recall, the degrees of freedom for the t-test is DFE = n – v – 1.
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