MULTIPLE CHOICE QUESTIONS

Question 4 of 10 2 Points The model Yu = H+ a,, i = 1, ... .4 is equivalent to the following model (i.e. the estimates of the 5 parameters in the first model will be equal to the estimates of the 5 parameters in the second model). Y, = Bo + BIXl, + $2X2, + B3X3, + B4X4u where X1, ..., X4 are indicator variables defining group membership for groups 1 to 4, respectively. O True False Reset SelectionQuestion 5 of 10 2 Points Why is the F-test for Ho : a1 = ... = da = 0 a one-sided test? O A. because sums of squares, and mean squares, are always positive O B. because only a large F-value provides evidence against Ho O C. because the F-value will always be larger than 1 O D. because F-tests are always one-sided O E. because only the right-hand-side of the F-distribution is given Reset Selection Mark for Review What's This?Question 6 of 10 2 Points -HOOO O LOOKHOO LOOOO- L L Consider the above design matrix. What model and parametrization were used? O A. Yj = Mtai, Enia; = 0, i = 1, ...,4 O B. Yj = di, i = 1, ...,4 O C. Yj = ut di, a1 = 0, i = 1, ...,4 O D. Yj = Mtai, i = 1, ...,3 Reset Selection Mark for Review What's This