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Suppose a multiple regression analysis of a full model involving 9 independent variables and 140 observations gives an R-square of 75%. A reduced model is

Suppose a multiple regression analysis of a full model involving 9 independent variables and 140 observations gives an R-square of 75%. A reduced model is fit with only 5 of the original independent variables retained. The R-square value for this reduced model is 65%.

What is the value of the F-statistic to assess whether the reduced model is adequate?

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