Given the following multiple regression equation: @:49+9m1+6m2713 Select the direction of change in y and enter a positive integer in the answer box. a) If m1 increases by 5 units while holding an; and mg constant, then y by C] units on average. b) If 32 increases by 6 units while holding $1 and 13 constant, then y by C] units on average. c) If mg increases by 2 units while holding 2:1 and $2 constant, then y by C] units on average. Question Help: 8 Message instructor - The following ANOVA table shows parts of the software output generated in developing a multiple regression model. \"am Residual 156 a) How many independent variables are in the model? k: n: b) What is the sample size? :2) What is the coefficient of determination? (\"I decimal place) Question Help: 8 Message instructor Question 10 - A multiple regression analysis involving a sample size of 14 and 3 independent variables produced an output with explained and total variation as follows: SSR = 4394 SST = 6084 The standard error of the estimate = C] Question Help: 8 Message instructor Check