XR16-58 Most lecturers prefer to have their students participate actively in class. Ideally,…

XR16-58 Most lecturers prefer to have their
students participate actively in class. Ideally, students will ask their
lecturer questions and answer their lecturer’s questions, making the classroom
experience more interesting and useful. Many lecturers seek ways to encourage
their students to participate in class. A statistics professor at a university
believes that there are a number of external factors that affect student
participation. He believes that the time of day and the configuration of seats
are two such factors. Consequently, he organised the following experiment. Six
classes of
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XR16-58 Most lecturers prefer to have their
students participate actively in class. Ideally, students will ask their
lecturer questions and answer their lecturer’s questions, making the classroom
experience more interesting and useful. Many lecturers seek ways to encourage
their students to participate in class. A statistics professor at a university
believes that there are a number of external factors that affect student
participation. He believes that the time of day and the configuration of seats
are two such factors. Consequently, he organised the following experiment. Six
classes of about 60 students each were scheduled for one semester. Two classes
were scheduled at 9:00 a.m., two at 1:00 p.m., and two at 4:00 p.m. At each of
the three times, one of the classes was assigned to a room in which the seats
were arranged in rows of 10 seats. The other class was a U-shaped, tiered room
in which students not only face the lecturer, but face their fellow students as
well. In each of the six classes, over 5 days, student participation was
measured by counting the number of times students asked and answered questions.
These data are displayed in the accompanying table.

a How many factors are there in this
experiment? What are they?

b What is the response variable?

c Identify the levels of each factor.

d What conclusions can the professor draw
from these data?

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