A university statisties department is conducting a series of randomized comparative experiments to compare teaching methods. Response variables include students' final exam scores and a measure of their attitude toward statisties.
One study compares two levels of technology for large group lectures: standard (overhead projectors and chall) and
multimedia. The experimental units in the study are the lecture sections in a basic statisties course, taught by four
different instructors as shown in the table below.
2
Section
Lecturer
3
Lennard
Tech
Lennard
Rosaly Traynham Rosaly
Fosco
(a) Describe the design of an experiment using blocking to determine which lecture method is most effective. Be
sure to explain how you will randomly assign the treatments