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A regression model relating x, number of sales persons at a branch office, to y, annual sales at the office ($1000s), has been developed. The computer output from a regression analysis of the data follows.

The regression equation is

Y = 80.0 + 50.0X

Predictor Coef Stdev t-ratio
Constant 80.0 11.333 7.06
X 50.0 5.482 9.12
Analysis of Variance
SOURCE DF SS MS
Regression 1 6828.6 6828.6
Error 28 2298.8 82.1
Total 29 9127.4

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 has 12 sales persons.

Please provide Details (No excel).

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The expert examines regression models relating x.

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A regression model relating x, number of sales persons at a branch office, to y, annual sales at the office ($1000s), has been developed. The computer output from a regression analysis of the data follows.

The regression equation is

Y = 80.0 + 50.0X

Predictor Coef Stdev t-ratio
Constant 80.0 11.333 ...

Purchase this Solution
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