An instructor implements a new teaching strategy in the classroom by using a teaching strategy to teach a sample of 6 students. After the instruction, he gives each student a test out of 100 possible points to test their recall. The score are as follows: 65, 73, 77, 70, 68, and 67. If the mean grade for all his classes with his standard teaching strategy is =75, then was there a difference in his teaching strategies? Perform the full hypothesis test for a one-sample t-test. Write your results in APA Format. (hint you will have to calculate your measures of central tendacy and variability first to complete the problem).