Question: pls show steps Problem 6 A researcher is trying to decide whether or not to add another variable to his regression model. He has estimated

pls show steps

Problem 6 A researcher is trying to decide whether or not to add another variable to his regression model. He has estimated the following equation for the model from a sample of 28 observations. - 23.62+ 18.86x1 + 24.72x2 SSE = 1425 SSR = 1320 He has also estimated the model with an additional variable x3. The results are: =25.32 + 15.29x1 +7.63x2 +12.72x3 SSE = 1350 SSR = 1465 What advice would you give this researcher? Use a . 10 level of significance

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