Question

Statistics teachers often debate the best order in which to teach topics. One group of teachers likes to teach design of studies first. Another group likes to begin with data analysis. To see which order is more effective in preparing students for the final​ exam, an experiment was proposed. A large group of​ teachers, each of whom teaches two sections of​ statistics, volunteered to be a part of the experiment. Each teacher will randomly assign one of their classes to begin with​ design, and the other to begin with data analysis. Which is the correct description of this​ design?

Choose the correct answer below.

A.

The experimental units are the​ classrooms, the blocks are the​ teachers, and the response variable is the difference in average final exam score for each​ teacher's classes.

B.

The experimental units are the​ teachers, there are no​ blocks, and the response variable is the average final exam score for each teacher.

C.

The experimental units are the individual​ students, the blocks are the​ teachers, and the response variable is the average final exam score for each classroom.

D.

The experimental units are the individual​ students, the blocks are the​ classrooms, and the response variable is each individual​ student's final exam score.

Answer 1