A regression model relating , number of salespersons at a branch office, to y, annual sales at the office (in thousands of dollars) provided the following regression output. Where ntotal = 32. ANOVA df SS MS F Significance F Regression 6,695.8 Residual Total 9,251.2 Coefficients Standard Error t Stat P-value Intercept 77.0 11.593 Number of 46.0 5.267 Salespersons a. Write the estimated regression equation (to whole number). y = b. Compute the F statistic and test the significance of the relationship at a 0.05 level of significance. (to 2 decimals) F-value p-value is - Select your answer - , we - Select your answer - v Ho c. Compute the t statistic and test the significance of the relationship at a 0.05 level of significance. (to 2 decimals) t Stat p-value is - Select your answer - , we - Select your answer - v Ho : 8, = d. Predict the annual sales at the Memphis branch office. This branch employs 14 salespersons. $ thousand (to whole number)