Fill in the blank with either the term: one sample or independent samples in the following sentences: A researcher would like to test her data gathered on weight gain in adolescents against the national average. They should use a t-test to do this. The same researcher also gathered data on weight gain in teenagers in the UK and would like to test this group's data against the data from her group on adolescents that live in the U.S.A. She should use a t-test to do this