EMPLOYMENT PSYCHOLOGY 
TABLE 8 
THE PROBABILITY THAT A DIFFERENCE Is REAL 
(See page 171) 
h hat the Diff 
Difference Divided by Standard Nae hot, the Di a 
Error of Difference tion Indicated Is 1 in 
oT 2.17 
2 2.38 
2.62 
" 2.90 
3 3.24 
a 3.65 
8 4.13 
’ 4.72 
Y 5.43 
1.0 6.30 
T.I 7.37 
1.2 8.69 
1.3 10.33 
1.4 12.38 
1.5 14.97 
1.6 18.25 
1.7 22.42 
1.8 27.86 
I.9 34.84 
2.0 44.05 
2.1 55.87 
2.2 71.94 
2.3 03.46 
2.4 121.95 
2.5 161.29 
2.6 212.77 
2.7 285.71 
2.8 384.62 
2.9 526.32 
3.0 740.74 
3.7 1,030.93 
3.2 1,455.39 
3.3 2,068.68 
3.4 2,968.24 
3.5 4,299.23 
3.6 6,285.36 
3.7 9,276.44 
3.8 13,831.26 
3.0 20,790.02 
4.0 31,545.74 
4.5 294,117.65 
5.0 3,487,066.52 
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