Test of significance for comparing means of 2 group is: (A) Paired t - test, (B) Unpaired t - test, (C) Sign test, (D) Chi - square test
Answer is B. Paired student t - test ⇒ Comparision of means in paired data of 1 group.
Un - Paired student t - test ⇒ Comparision of means between 2 group.
ANOVA test ⇒ Comparision of means if ≥ 3 groups.