same. SCENARIO 4 A statistics teacher predicts that the distribution of grades on the final exam will be 25% A's, 30% B's, 35% C's, and 10% D's. The actual distribution of grades on the final exam for 20 students is as follows. Using a 0.05 level of significance, is the statistics teacher's prediction correct? Here are the Grades: A,D,D,A,A,B,B,C,C,A,A,A,B,B,C,C,C,C,A,A Question 19 (1 point) Saved Listen What is the null hypothesis? a 65OF ho 11 R H N M