Cotton Percentage 15 20 25 30 35 1 7 12 14 19 7 Observations 2 7 17 18 25 10 3 15 12 18 22 11 4 11 18 19 19 15 s 9 18 19 23 11 (a) Does cotton percentage affect breaking strength? Draw comparative box plots and perform an analysis of variance. Use a P-value approach. (c) Which specific means are different? (d) Perform residual analysis and model checking. (b) Plot average tensile strength against cotton percentage and interpret the results.

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Author:Amos Gilat
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please answer parts a-d by using r- studio

Cotton
Percentage
15
20
25
30
35
1
7
12
14
19
7
Observations
2
7
17
18
25
10
3
15
12
18
22
11
11
18
19
19
15
5
9
18
19
23
11
(a) Does cotton percentage affect breaking strength? Draw
comparative box plots and perform an analysis of
variance. Use a P-value approach.
(b) Plot average tensile strength against cotton percentage
and interpret the results.
(c) Which specific means are different?
(d) Perform residual analysis and model checking.
Transcribed Image Text:Cotton Percentage 15 20 25 30 35 1 7 12 14 19 7 Observations 2 7 17 18 25 10 3 15 12 18 22 11 11 18 19 19 15 5 9 18 19 23 11 (a) Does cotton percentage affect breaking strength? Draw comparative box plots and perform an analysis of variance. Use a P-value approach. (b) Plot average tensile strength against cotton percentage and interpret the results. (c) Which specific means are different? (d) Perform residual analysis and model checking.
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