national multiple family submetering and allocation billing program ...

Table 5.12 Association of categorical property characteristics with water use
Indoor Water Use per Unit in 2001 Indoor Water Use per Unit in 2002
Property Characteristic
Mean
(kgal)
Std.
Dev. N
P-
Value *
Mean
(kgal)
Std.
Dev. N
P-
Value *
Senior
Yes 40.70 23.20 N=110 41.80 24.40 N=101
citizen/retirement No 52.70 25.50 N=1039 0.000 53.00 27.40 N=921 0.000
community? Don't know 48.10 12.00 N=4
44.00 11.50 N=4
Does property Yes 55.50 26.70 N=581 55.40 26.20 N=551
0.000
have a pool? No 47.40 23.40 N=575
47.50 27.50 N=475
0.000
Year Property was 1994 or earlier 52.60 25.80 N=966 52.60 27.90 N=855
0.000
Built 1995 or later 42.90 22.00 N=119
45.70 21.20 N=113
0.012
Play area
no 49.70 24.20 N=978 50.00 26.50 N=864
0.000
yes 61.10 29.40 N=185
61.50 28.70 N=169
0.000
Cooling tower
no 50.90 24.90 N=1105 51.20 26.80 N=975
0.000
yes 63.50 33.10 N=58
62.70 32.20 N=58
0.002
none or