Group Condition n Sample mean, x Is Service 57 14.68 105.32 No Service 17 14.26 96.82
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
Do college students who have volunteered for community service work differ from those who have not? A study obtained data from 57 students who had done service work and 17 who had not. One of the response variables was a measure of attachment to friends (roughly, secure relationships), measured by the Inventory of Parent and Peer Attachment. The results are summarized in the table below.
The 90% confidence interval for μ1−μ2 is:
Transcribed Image Text:Group
Condition n
Sample mean, x
1
Service
57
14.68
105.32
2
No Service 17
14.26
96.82
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