International Journal of Interdisciplinary Research
Table 5 Three-way analysis of variance for color change
From: Comparisons of fabric care performances between conventional and high-efficiency washers and dryers
Color change | Sum of squares | df | Mean square | F |
|---|---|---|---|---|
Main effects | 35.28 | 35 | 1.01 | 6.59*** |
Combination of washer and dryer (W/D) used | .50 | 2 | .25 | 1.64 |
Softener usage | .19 | 1 | .19 | 1.24 |
Number of laundering cycles | 30.99 | 5 | 6.20 | 40.48*** |
Combination of W/D used × softener | .03 | 2 | .01 | .09 |
Combination of W/D used × cycles | 1.76 | 10 | .18 | 1.15 |
Softener × cycles | 1.64 | 5 | .33 | 2.15 |
Combination of W/D used × softener × cycles | .18 | 10 | .02 | .12 |
Error | 22.04 | 144 | .15 | |
Total | 3120.14 | 180 |