Regression. A coach wants to see the relationship between the statistics of practice games and official games of a local soccer team. A sample of 11 players was used and the resulting (partial) Excel output is shown below. Assume both x and yform normal distributions. Regression Statistics Multiple R *** R Square 0.70524 Adjusted R Square 0.668395 Standard Error 8.703633 Observations 'l 1 (a) The slope of the regression line is O A. 0.797 O B. 0.171 O C. 4.376 O D. 40.231 (b) The correlation coefficient is O A. 0.8398 O B. -0.8398 O C. None of the other answers O D. 0.705A hypothesis test is done to determine whether the correlation coefficient is signicantly different from zero. (c) The alternate hypothesis is -:'ji:- A. H1 :11 = 0 B. H1 :[3 at 0 -:";:. c. H1 :p at 0 (d) The test statistic is {j} A. 40.78 {j} B. 4.794 {:2} C. None of the other answers (:11- D. 0.362 (e) The degrees of freedom are: OA. 9 OB. 8 O C. 11 O D. 10 (f) At the 5% significance level it can be concluded that there is evidence to suggest the correlation coefficient is O A. positive O B. not zero O C. zero O D. negative