In a PSY-101 class, a teacher is interested in seeing if merely having students sign in everyday in class will increase attendance. Over many prior semesters of PSY-101 teaching, it has been found that the average number of classes students attend is = 24 of 30 during the semester. One semester the teacher institutes a sign in sheet on which students sign in each day. At the end of the semester, in a classroom of n=49 students, the students have attended an average of M=28 classes. The teacher finds that the standard deviation for the sample of 49 students was s=11.50. Did the use of the sign-in sheet significantly improve attendance. Test the hypothesis that the sign-in sheet increases attendance. Be sure to show your work for all 4 steps discussed in class. Use = .01.