[ v GO webassign.net C 5. [-/12 Points] DETAILS ASWSBE14 14.E.042.MI. MY NOTES ASK YOUR TEACHER You may need to use the appropriate technology to answer this question. A regression model relating x, number of salespersons at a branch office, to y, annual sales at the office (in thousands of dollars) provided the following computer output from a regression analysis of the data Analysis of Variance SOURCE DE Adj SS Adj MS Regression 6828 .6 6828.6 Error 18 2298. 8 82. 1 Total 9127. 4 Predictor Loef SE Coef Constant 30.0 11 . 333 7 . 06 X 50.0 5 . 482 9.12 Regression Equation Y = 80.0 + 50.00 X (a) Write the estimated regression equ 9 = (b) How many branch offices were involved in the study? (c ) Compute the F statistic and test the significance of the relationship at a 0.05 level of significance. State the null and alternative hypotheses. OHo: B1 = 0 Ha : B1 = 0 OHo : B 1 20 Ha : B1