Suppose we run the following regression JobStr B1 +B2 M+B Erp+ B, Edu + u to explain an individual's job stress level by their gender (M for male dummy), work experience (Exp) and education (Edu), using a sample of 300 observations. Fill in the blanks of the degrees of freedom in the F test statistic for the joint explanatory power of the explanatory variables in the model: F

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