You may need to use the appropriate appendix table or technology to answer this question At Western University the historical mean of scholarship examination scores for freshman applications is 900. A historical population standard deviation o = 180 is assumed known. Each year, the assistant dean uses a sample of applications to determine whether the mean examination score for the new freshman applications has changed. (a) state the hypotheses. ovo 4 5 900 H> 900 OH! #> 900 HH S 900 Hou