Consider the following data for a dependent variable y and two independent variables, x, and x2. 12 92 108 25 17 112 31 16 178 5 94 51 19 175 170 12 117 13 142 16 209 The estimated regression equation for these data is = -18.06 + 2.00x] + 4.71X2. Here, SST = 15,090.1, SSR = 13,937.2, s. = 0.2495, and s = 0.9577. (a) Test for a significant relationship among x] , x2. and y. Use a = 0.05. State the null and alternative hypotheses. OH: B, >2 H: B, 5 2 OH: B = 8,=0 H : One or more of the parameters is not equal to zero. OH : 8 = 0 and 6, = 0 H: One or more of the parameters is equal to zero. OH : 8, = 0 and 8, = 0 H. : 8, = 0 and #2 = 0 OH: B