"Answer the following 5 business statistics questions for section c" (attached)

\fA sales managerfor 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 ANOVA shows the following results. -_ - -255557 13- =55-67 14248 7 _ What isthe value of the coefficient of determination? Multiple Choice O 70,3516 0.9755 O O OBE'lS O 0,5322 A manager at a local bank analyzed the relationship between monthly salary and three independent variables: Length of service (measured in months), Gender (0 = female, 1 = male), and Job type (0 = clerical, 1 = technical). The following ANOVA summarizes the regression results. ANOVA Source of Variation df Sum of Squares Mean Square F Regression 3 1,024,353.483 834,782.257 5.96 Residual 26 1,441,127.884 56,197.48445 Total 29 2,465,481.367 Coefficients Standard Error t-Stat p-value Intercept 784.92 322.25 2.44 0.O Service 9.19 3.20 2.87 0.01 Gender 222.78 89.00 2.50 0.02 Job -28.21 89.61 -0.31 0.76 Based on the ANOVA, the coefficient of multiple determination is Multiple Choice O 60.1% O cannot be computed O 41.5% O 6.769%Consider the multiple regression model shown next between the dependent variable Yand four independent variables X1, X2. X3, and X,, which result in the following function: r: 33 + 8X1 6X: + i6X3 +18X_ For this model, there were 40 observations; SSR=1,440 and SSE: 600, The critical F-value at the 1% level of significance is, Muhiple Choice 0 2.68 O 3 90 O 2.60 O 39'l