Random sampling from four treatments
Random sampling from four treatments produced the following data:
Treatments
A
B
C
D
-11
-8
-12
-13
-10
-15
xa=-11.3
xb=-12
xc=-10.4
xd=-13.3
sa2 = 2.33
sb2 = 8.7
sc2 = 6.3
sd2 = 2.3
Compute the SSTR.
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