15

Question 15 (17 points) Amy, Natalie, Briana, Patrick, and Marriah are designing an experiment to compare two different types of teaching methods, traditional learning and virtual learning, to investigate which type is better for maximizing student test scores at the end of a semester. The experiment will consits of randomly assigning the methods to teachers who are classified as either public or private school teachers. A randomized block design is planned, with blocking by classication of the teacher. Random samples of 50 public school teachers and 50 private school teachers will be selected. Each teacher within each classification will be randomly assinged to teach either using traditional learning instruction or virtual learning instruction and their students' test scores will be recorded at the end of the sememter. A. What is the statistical advantage of blocking by the classification of teacher? B. Why is it important to randomize the type of instruction that the teacher will use instead of allowing the teacher to choose the method? C. Explain how the design of the experiment will address replication. What is the benefit of replication