Which statistical test do you use when you want to compare the change in  average of group to the average of another group before and after a treatment?

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter30: Customary And Metric Steel Rules
Section: Chapter Questions
Problem 24A
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Which statistical test do you use when you want to compare the change in  average of group to the average of another group before and after a treatment?

Subgroups Before
After
A
75%
25%
72%
22%
Group
Fire
80%
30%
D
76%
77%
E
Group
69%
71%
Ice
F
78%
79%
Transcribed Image Text:Subgroups Before After A 75% 25% 72% 22% Group Fire 80% 30% D 76% 77% E Group 69% 71% Ice F 78% 79%
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9781337798310
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Peterson, John.
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Cengage Learning,