Experimental Mean Difference:
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 1C
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Question
24 students were randomly split up into two equally sized groups. Each member of the first group (group 1) used online math homework and each member of the second group (group 2) used paper math homework. Both groups were given the same test at the end of the year and the test results are shown in the table below.
Group 1
|
Group 2
|
100
|
71
|
67
|
88
|
100
|
75
|
100
|
73
|
71
|
61
|
83
|
57
|
58
|
68
|
74
|
78
|
100
|
66
|
65
|
46
|
79
|
68
|
76
|
67
|
|
Mean: 68.2
|
What is the Experimental Mean Difference:
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