8. Reselect all cases. Then select only those cases for which X < 2, Y < 2, and Z < 2. Report the mean value of M for this sub-sample. O 1.31 O 0.375 O 840 3.36 Question 9 Q09. Reselect all cases. Then create a new variable called Index such that Index = (X+Y+Z)2. What is the maximum value of Index? O921782660.5 O 900 O 30 O 60 1 2 3 4 5 6 7 8 9 10 11 12 Syb b bh e t t e by wwwNNNNNNNNNN 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 52 53 54 55 56 57 -8- A ID 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 B X 10 10 2 1 SSSSS44995 3 10 10 NOW 2 6999 4 10 1 10 10 8 2 1 10 555 co 1 3 3 1 5 1 3 6 10 0 3 6 9 C Y 10 6 0 0 5 10 6 4 6 1 10 Om 0 1 7 7 0 10 6 2 6 5 7 10 1 10 9 8 5 7 4 2 4 9 00 m 8 7 7 D Z 7 6 4 10 9 3 2 7 4 7 6 1 4 10 2 6 OSTMI in 0 7 3 2 8 5 0 9 OO6 1 7 2 3 3 0 4 5 2 0 1 2 0 7 8 3 E Group C C A C MUALCU U U U U U U U U U CABLU U U U U AU U U U U AU UMUUUUU C C B C B C C MUUUAU B C C C F