A regression model relating the number of salespersons at a branch office to annual sales at the office (in thousands of dollars) provided the following regression output.

a. Write the estimated regression equation.
b. Compute the F statistic and test the significance of the relationship at the .05 level of significance.
c. Compute the t statistic and test the significance of the relationship at the .05 level of significance.
d. Predict the annual sales at the Memphis branch office. This branch employs 12 salespersons.

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ANOVA JWS Regression Residual Total 6828.6 9127.4 Coefficients 80.0 50.0 Standard Error Stat P-value Intercept Number of Salespersons 11.333 5.482