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.Use Fisher's and Tukey'steststo determine which groups are significantly different from each other at the .05 level and explain where the differences are and what this means.

ii.Are both of these tests justified here in this case?

ii.Which test is preferable? Explain why.