( 1 point ; The Survey of Study Habits and Attitudes (SS HA) is a psychological test that measures students' study habits and attitude toward school . Scores range from $ to 200 . The mean score for college students is about 1 15 , and the standard deviation is about 30. A teacher suspects that the mean " for older students is higher than 1 15 . She gives the SSHA to an SRIS Of students who are at least 30 years old . Suppose we know that scores in the population of older students are Normally distributed with standard deviation ` = 30. State the null and alternative hypotheses for the study of older students' attitudes . Note : Type in " mu" as the substitute for & and "I = " for * . HO : Ha