Problem 1 [18 points]: At a university the historical mean of scholarship examination scores for freshman applications is 1200. A historical population standard deviation 'Sigma' = 120 is assumed known. For the upcoming next year admission cycle, a sample of 100 applications show a sample mean exam score of 1248. Is there evidence at 96% condence level that the mean examination score for freshman applications has changed from the historical mean? Incorrect Question 7 0 / 1 pts Problem 1g) What is the computed value of the test statistic for this Hypothesis Testing problem? O -4.0 O 0.4 O -0.4 O 4.0 O different than the other four values listed here