Question: A regression model relating x, number of salespersons at a branch office, to y, annual sales at the office (in thousands of dollars), provided the

A regression model relating x, number of salespersons at a branch office, to y, annual sales at the office (in thousands of dollars), provided the following computer output from a regression analysis of the data.

a. Write the estimated regression equation.
b. How many branch offices were involved in the study?
c. Compute the F statistic and test the significance of the relationship at a .05 level of significance.
d. Predict the annual sales at the Memphis branch office. This branch employs 12salespersons.

The regression equation is Y80.0+50.00 X Predictor Constant Coef 80.0 50.0 SE Coef 11.333 5.482 7.06 9.12 Analysis of Variance SOURCE Regression Residual Error Total DF 1 28 29 6828.6 2298.8 9127.4 MS 6828.6 82.1

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