Question 2 Source of Variation Regression SSR (X) SSR(XX) SSR(XX, X) Error Total bo + bX...

  

Transcribed Image Text:

Question 2 Source of Variation Regression SSR (X₂) SSR(X₂X₂) SSR(X₂X₁, X₂) Error Total Ŷbo + b₁X₁ + b₂X2 + b3X3 DF 311W 20 24 Sum of Squares 107.9 90.2 15.3 2.4 16.9 124.8 Mean Square 26.975 0.845 The object is to find the appropriate model to be an estimate for the population linear regression model. In order to do analysis, consider the following: 2.1. Find all relevant extra sums of squares ▪ SSE (X₁) ▪ SSE (X₁, X₂) SSE (X₁, X₂, X₂) 2.2. Find the coefficient of multiple determination and explain what it measures. 2.3. Find all the coefficients of partial determination and explain each of them. Question 2 Source of Variation Regression SSR (X₂) SSR(X₂X₂) SSR(X₂X₁, X₂) Error Total Ŷbo + b₁X₁ + b₂X2 + b3X3 DF 311W 20 24 Sum of Squares 107.9 90.2 15.3 2.4 16.9 124.8 Mean Square 26.975 0.845 The object is to find the appropriate model to be an estimate for the population linear regression model. In order to do analysis, consider the following: 2.1. Find all relevant extra sums of squares ▪ SSE (X₁) ▪ SSE (X₁, X₂) SSE (X₁, X₂, X₂) 2.2. Find the coefficient of multiple determination and explain what it measures. 2.3. Find all the coefficients of partial determination and explain each of them.