A researcher is interested in comparing math anxiety levels of people who either engage in a study group, complete study guides at home, or do not study. If the null hypothesis is rejected, which of the following could be a possible explanation but requires further testing? a.mu subscript 2 less than space mu subscript 3 b.mu subscript 1 greater than space mu subscript 2 c.mu subscript 1 not equal to space mu subscript 2 d.a l l space o p t i o n s space a r e space c o r r e c t
