Answered: Fill in tł sing values in 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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Question

Prof. Henderson, always interested in improving her teaching effectiveness, has decided to undertake a careful analysis of her student evaluations from the past several years. The last question on the student evaluation form, Question 17, is "Would you recommend this professor to another student?" A matter of special concern to Prof. Henderson is how she is viewed by students of different majors. Each of Prof. Henderson's students can be placed into a category according to the student's major school. (Students who have majors from more than one school are not included.) So, there are two variables under consideration: student's major school ("School of Social Sciences", "School of Engineering", or "School of Physical Sciences") and answer to Question 17 ("No", "Maybe", or "Yes").

The contingency table below contains a summary of the responses to Question 17 for a random sample of 500 of Prof. Henderson's students. In each cell of the table is written three numbers: the first number is the observed cell frequency (fO); the second number is the expected cell frequency (fE) under the assumption that the variables student's major school and answer to Question 17 are unrelated; and the third number is the following value.

=−fOfE2fE−Observed cell frequencyExpected cell frequency2Expected cell frequency

Fill in th y sing values in the contingency table. Round your expected frequencies to two or more decimal places, and round your
values to three
or more decimal places.
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Student's major school
?
School of
School of
School of
Social
Physical
Total
Engineering
Sciences
Sciences
46
32
27
"No"
27.93
105
0.031
45
30
27
"Maybe"
27.13
102
Response to
Question 17
0.001
149
65
79
"Yes"
140.64
74.42
77.94
293
0.497
1.192
0.014
Total
240
127
133
500
Dart 2

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