A sales manager for an advertising agency believes there is a relationship between the number of contacts that a salesperson makes and the amount of sales dollars earned. A regression analysis shows the following results.     Coefficients Standard Error t-Stat p-value Intercept −12.201 6.560 −1.860 0.100 Number of contacts 2.195 0.176 12.505 0.000 What is the regression equation?   Multiple Choice   Ŷ = 2.195 − 12.201X   Ŷ = −12.201 + 2.195X   Ŷ = 12.201 + 2.195X   Ŷ = 2.195 + 12.201X

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