t test for 2 groups and for ANOVA it is for more comparing than 2 groups

t and ANOVA test used to test for significant difference in means

\(\displaystyle{H}_{{o}}:\mu_{{1}}-\mu_{{2}}\)

\(\displaystyle{H}:\mu_{{1}}=\mu_{{2}}=\mu_{{3}}\) in ANOVA

Assumes popualtion variances to be equal samples are drawn from popualtions fand sample should follow normal distribution

ANSWERS:

They assume normality within groups

They assume homogenity of variances

They make inferences about population means .

t and ANOVA test used to test for significant difference in means

\(\displaystyle{H}_{{o}}:\mu_{{1}}-\mu_{{2}}\)

\(\displaystyle{H}:\mu_{{1}}=\mu_{{2}}=\mu_{{3}}\) in ANOVA

Assumes popualtion variances to be equal samples are drawn from popualtions fand sample should follow normal distribution

ANSWERS:

They assume normality within groups

They assume homogenity of variances

They make inferences about population means .