Chapter 15: The fillweight experiment. 

Col 1: Standard deviation (STD) - the response variable.
Col 2:  P - number of ports (1 or 3 ports)
Col 3:  T - temperature (ambient or cool)
Col 4:  W - batch weight (1500 or 2000 pounds)
Col 5:  D - delay (1 or 7 days)
Col 6:  M - mixing time (60 or 80 seconds).

1.18  -  -  -  -      +
1.70  +  -  -  -      -
1.13  -  +  -  -      -
1.28  +  +  -  -      +
1.85  -  -  +  -      -
2.10  +  -  +  -      +
1.09  -  +  +  -      +
1.36  +  +  +  -      -
0.97  -  -  -  +      -
0.98  +  -  -  +      +
1.47  -  +  -  +      +
1.25  +  +  -  +      -
0.76  -  -  +  +      +
0.62  +  -  +  +      -
0.78  -  +  +  +      -
1.10  +  +  +  +      +