There are two independent samples whose size are 9 and 9. If we want to test the significance of difference of their means, df of t-test will be
A. 17
B. 16
C. 8
D. 8, 8
Answer: Option B
Related Questions on Agricultural Statistics
A. Field trails
B. Exhibitions
C. Competition
D. Fair
The intelligency, ability or efficiency can be measured by use of
A. Median
B. G.M.
C. Weighted H.M.
D. Geometric mean
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