International Journal of Interdisciplinary Research
Table 7 Three-way analysis of variance for dimensional change
From: Comparisons of fabric care performances between conventional and high-efficiency washers and dryers
Dimensional change (%) | Sum of squares | df | Mean square | F |
|---|---|---|---|---|
Main effects | 601.53 | 35 | 17.19 | 50.20*** |
Combination of washer and dryer (W/D) used | .91 | 2 | .45 | 1.32 |
Softener usage | .05 | 1 | .05 | .14 |
Number of laundering cycles | 593.13 | 5 | 118.63 | 346.47*** |
Combination of W/D used × softener | .28 | 2 | .14 | .41 |
Combination of W/D used × cycles | 2.05 | 10 | .21 | .60 |
Softener x cycles | .97 | 5 | .19 | .57 |
Combination of W/D used × softener × cycles | 4.14 | 10 | .41 | 1.21 |
Error | 49.30 | 144 | .34 | |
Total | 3567.86 | 180 |