International Journal of Interdisciplinary Research
Table 8 Three-way analysis of variance for skewness change
From: Comparisons of fabric care performances between conventional and high-efficiency washers and dryers
Skewness change (%) | Sum of squares | df | Mean square | F |
|---|---|---|---|---|
Main effects | 79.89 | 35 | 2.28 | 1.75* |
Combination of washer and dryer (W/D) used | .27 | 2 | .13 | .10 |
Softener usage | .01 | 1 | .01 | .01 |
Number of laundering cycles | 52.37 | 5 | 10.47 | 8.04*** |
Combination of W/D used × softener | 3.30 | 2 | 1.65 | 1.27 |
Combination of W/D used × cycles | 18.25 | 10 | 1.83 | 1.40 |
Softener × cycles | 3.61 | 5 | .72 | .55 |
Combination of W/D used × softener × cycles | 2.09 | 10 | .21 | .16 |
Error | 187.62 | 144 | 1.30 | |
Total | 517.85 | 180 |