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MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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
Transcribed Image Text:Summary data
Number of students
Mean final exam score
Standard deviation final exam
score
Print
semester, he taught a class using the online homew
- X
Fall semester Spring semester
21
28
72.9
69.6
10 9
13
Done
0 Final exam scores
oo
 alt="esc
A professor wanted to determine whether an online homework system improved scores on a final exam. In the fall semester, he taught a class using the online homework system (which meant students did their homework online
and received instant feedback about their answers along with helpful guidance). In the spring semester, he taught a class without the homework system (which meant students were responsible for doing their homework the
old-fashioned way - paper and pencil). The professor made sure to teach the two courses identically (same text, syllabus, tests, meeting time, meeting location, and so on). The table summarizes the results of the two classes on
their final exam. Complete parts (a) through (e) below.
Click the icon to view the table.
(a) What type of experimental design is this?
O A. Randomized blocked design
OB. Retrospective study
OC. Completely randomized design.
OD. Prospective study
(b) What is the response variable?
O Weather
Final exam scores
O Text
Ⓡ FO
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Transcribed Image Text:esc
A professor wanted to determine whether an online homework system improved scores on a final exam. In the fall semester, he taught a class using the online homework system (which meant students did their homework online
and received instant feedback about their answers along with helpful guidance). In the spring semester, he taught a class without the homework system (which meant students were responsible for doing their homework the
old-fashioned way - paper and pencil). The professor made sure to teach the two courses identically (same text, syllabus, tests, meeting time, meeting location, and so on). The table summarizes the results of the two classes on
their final exam. Complete parts (a) through (e) below.
Click the icon to view the table.
(a) What type of experimental design is this?
O A. Randomized blocked design
OB. Retrospective study
OC. Completely randomized design.
OD. Prospective study
(b) What is the response variable?
O Weather
Final exam scores
O Text
Ⓡ FO
11
2 US 9:29
Statcrunch
F
2
W
S
3
#m
e
C
r
J
JL
d
4
f
%
5
t
6.0
6
Oll
y
O Test
hp
h
&
7
O
u
j
* 00
8
0
i
9
k
#
(
O
Sign out
P
{
[
2
backsp
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