A researcher conducted an experiment to determine the effect of a lecturer's age on student preferences to hear him lecture. In a regular classroom situation, 30 students were told that the administration wished to know their preferences regarding a forthcoming visiting lecture series. In particular, they were asked to evaluate a professor who "might be visiting the campus.' The professor was described to all students in the same way with one exception: One-third of the
A researcher conducted an experiment to determine the effect of a lecturer's age on student preferences to hear him lecture. In a regular classroom situation, 30 students were told that the administration wished to know their preferences regarding a forthcoming visiting lecture series. In particular, they were asked to evaluate a professor who "might be visiting the campus.' The professor was described to all students in the same way with one exception: One-third of the
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A researcher conducted an experiment to determine the effect of a lecturer's age on
student preferences to hear him lecture. In a regular classroom situation, 30 students were told that
the administration wished to know their preferences regarding a forthcoming visiting lecture
series. In particular, they were asked to evaluate a professor who “might be visiting the campus."
The professor was described to all students in the same way with one exception: One-third of the
students were told the professor was 75 years old; one-third were told the professor was 50 years
old; and the remaining one-third were told that the professor was 25 years old. All students were
then asked to indicate their willingness to attend the professor's lecture on a scale of 1 to 10 (with
10 being the highest). From the results given below, determine whether there is a significant
difference between these groups of students with respect to their willingness to attend the lecture.
Test at a = .01.
X1
X2
X3
(Scores of Students
told Professor was 25
(Scores of Students
told Professor was 50
(Scores of Students
told Professor was 75
years old)
years old)
years old)
9.
6.
4
3
4
6.
6.
7
7
4
7
4
5
7
3
5
6.
7
3
8
5
4
6.
6
2
6.
8
7
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