Which situation below violate an assumption for conducting hypothesis tests using t statistic? two observations in a sample are independent from one another the population from which a small sample...

Which situation below violate an assumption for conducting hypothesis tests using t statistic?

two observations in a sample are independent from one another

the population from which a small sample (n<30) is="" obtained="" for="" a="" hypothesis="" test="" is="" normally="">

the population from which a large sample (n>30) is obtained for a hypothesis test is not normally distributed

None