1. You're a trainer for Microsoft Corp.In a random fashion, 12 different employees are assigned to each

of four training method conditions (M1, M2, M3 and M4). Learning times for each participant and the means of

learning times for each condition are shown in the table below.

M1

10

9

5

Mean= 8

M2

11

16

9

Mean= 12

M3

13

8

9

Mean= 10

M4

18

23

25

Mean= 22

i. Calculate the linear contrast comparing methods 1 and 2 combined vs. methods 3 and 4 combined.Is

the linear contrast significant at the 0.05 level, as a planned contrast?

ii. Retest this contrast for significance at the .05 level with Scheffe as a post hoc complex comparison.

iii. Make sure to explain all the results from the planned (a priori) contrast as well as from the post hoc

complex comparison.