Statistical Design of Experiments
Statistical Design of Experiments
Statistical Design of Experiments
Statistical Design of Experiments
Two
Two
-Way ANOVA
-Way ANOVA
Example
Example
The evaluation of a flame retardant
The evaluation of a flame retardant
was conducted at two different
was conducted at two different
laboratories on three different
laboratories on three different
materials with the following results:
materials with the following results:
Materials
Materials
1
1
2
2
1
1
2
2
3
3
4.1
4.1
3.9
3.9
4.3
4.3
3.1
3.1
2.9
2.9
3.3
3.3
3.5
3.5
3.2
3.2
3.6
3.6
2.7
2.7
3.1
3.1
2.6
2.6
1.9
1.9
2.2
2.2
2.3
2.3
2.7
2.7
2.3
2.3
2.5
2.5
Materials (B)
Materials (B)
1
1
2
2
1
1
2
2
3
3
12.3
12.3
8.4
8.4
20.7
20.7
9.2
9.2
6.4
6.4
15.6
15.6
10.3
10.3
7.5
7.5
17.8
17.8
Total (B)
Total (B)
Total (A)
Total (A)
31.8
31.8
22.3
22.3
54.1
54.1
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