120. A golf instructor is interested in determining if her new technique for improving players' golf scores is effective. She takes four new students. She records their 18-hole scores before learning the technique and then after having taken her class. She conducts a hypothesis test. The data are as follows. Player 1 Mean score before class Mean score after class Table 10.31 83 80 Player 2 78 80 Player 3 Player 4 93 86 87 86 The correct decision is: Explain why and show your work. a. Reject H0. b. Do not reject the H0