Statistics Homework Solutions
Problem
#8997

Regression

The regression equation is number of invoices per month = 138 + 0.000087 amount of sales

Predictor Coef SE Coef T P
Constant 137.78  31.61  4.36 0.001
S= 10.7058  R-Sq=82.4% R-Sq(adj) = 80.7%
Regression 1  5380.5  5380.5  46.95  0.000
Residual error 10  1146.1  114.6
Total  11  6526.7



AMOUNT OF SALES NUMBER OF INVOICES PER MONTH
2529436.37 372
2541268.67 368
2136722.9 328
2886620.67 389
2617799.32 347
2541457.54 362
2574591.31 365
2146129.28 322
2622806 346
2476589.98 356
2699229.26 378


If you can use graphs or whatever in an effort to help me understand the regression analysis.


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