Asales manager for an advertising agency believes that there is a relationship between the number of contacts that a salesperson makes and the amount of sales dollars earned. a regression anova shows the following results: anova df ss ms f significance f regression 1.00 13555.42 13555.42 156.38 0.00 residual 8.00 693.48 86.68 total 9.00 14248.90 what is the value of the coefficient of determination?