MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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1. The following are pull strengths (in pounds) required to break the bond of two kinds of
glue, in the table to the left. Determine at the 0.01 level of significance if there is a
difference between the bond strengths of the glues |
Glue 1
25.3
20.2
21.1
27.0
16.9
30.1
17.8
22.9
27.2
20.0
Glue 2
24.9
22.5
21.8
23.6
19.8
21.6
20.4
22.1
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Transcribed Image Text:1. The following are pull strengths (in pounds) required to break the bond of two kinds of glue, in the table to the left. Determine at the 0.01 level of significance if there is a difference between the bond strengths of the glues | Glue 1 25.3 20.2 21.1 27.0 16.9 30.1 17.8 22.9 27.2 20.0 Glue 2 24.9 22.5 21.8 23.6 19.8 21.6 20.4 22.1
State hypothesis
Define test, one or 2 sided?
Test assumptions (equal variance, normality)
State test statistic (t, F, Chi-square)
State critical value (1 or 2 sided, degrees of freedom) example: f crit (1, 3, 20)
State conclusions.
You can use Excel or STATA as an aid to perform the tests, but you should be "in control" of all the steps. If
applicable, include STATA outputs, or Excel spreadsheets, in your submission.
expand button
Transcribed Image Text:State hypothesis Define test, one or 2 sided? Test assumptions (equal variance, normality) State test statistic (t, F, Chi-square) State critical value (1 or 2 sided, degrees of freedom) example: f crit (1, 3, 20) State conclusions. You can use Excel or STATA as an aid to perform the tests, but you should be "in control" of all the steps. If applicable, include STATA outputs, or Excel spreadsheets, in your submission.
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