A t-test is appropriate when:
ACounting categorical frequencies
BComparing many variables simultaneously
CDetecting non-linear correlation
DComparing means of two groups with normal distribution and small sample
Answer & Solution
Correct answer: D. Comparing means of two groups with normal distribution and small sample
1. ANOVA compares many groups; chi-square handles frequencies.
2. The t-test compares two-group means with normality assumptions.
3. Hence option A.
_Source: Trueman's UGC NET/SLET General Paper I (Manohar Pub.), 2010 — Statistical Tests_