What are Upper H 0 and Upper H Subscript a? Assume that mu 1 represents the mean of the test scores of those taught with the old curriculum and mu 2 represents the mean from the new curriculum. Identify the claim. The null hypothesis, Upper H 0, is mu 1 equals mu 2 . mu 1 less than or equals mu 2 . mu 1 greater than or equals mu 2 . The alternative hypothesis, Upper H Subscript a, is mu 1 greater than mu 2 . mu 1 not equals mu 2 . mu 1 less than mu 2