International Journal of Interdisciplinary Research
Table 6 Three-way analysis of variance for fabric smoothness
From: Comparisons of fabric care performances between conventional and high-efficiency washers and dryers
Fabric smoothness | Sum of squares | df | Mean square | F |
|---|---|---|---|---|
Main effects | 27.74 | 35 | .79 | 6.35*** |
Combination of washer and dryer (W/D) used | 7.14 | 2 | 3.57 | 28.59*** |
Softener usage | .15 | 1 | .15 | 1.19 |
Number of laundering cycles | 15.78 | 5 | 3.16 | 25.30*** |
Combination of W/D used × softener | .05 | 2 | .02 | .19 |
Combination of W/D used × cycles | 1.69 | 10 | .17 | 1.35 |
Softener × cycles | .97 | 5 | .19 | 1.55 |
Combination of W/D used × softener × cycles | 1.97 | 10 | .20 | 1.58 |
Error | 17.97 | 144 | .13 | |
Total | 1285.25 | 180 |