Question: A regression model with K = 16 independent variables is fit using a panel of sevenyears of data. The sums of squares for the seven

A regression model with K = 16 independent variables is fit using a panel of sevenyears of data. The sums of squares for the seven separate regressions and the pooled regression are shown below. The model with the pooled data allows a separate constant for each year. Test the hypothesis that the same coefficients apply in everyyear.

Observations c'e 1954 65 104 1955 55 88 1956 87 206 1957

Observations c'e 1954 65 104 1955 55 88 1956 87 206 1957 95 144 1958 103 199 1959 87 308 1960 78 211 All 570 1425

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