Page 64 - Quantitative Data Analysis
P. 64
Quantitative Data Analysis
Simply Explained Using SPSS
Logic behind Independent t-Test
One Sample Test Statistics
̅
̅
√ √ ×
̅
̅
√ √ ×
Generally:
√
√ ×
̅
̅
̅ − ̅
̅
̅
̅ − ̅
If sample size of the two groups is equal (n 1 = n 2) then
̅ − ̅ √
̅ ̅
The Theory and Applications of Statistical Inferences 48
