"Table 4-2 Screener nonresponse weighting classes
",,,,,
Weighting class,Pre-notification letter,Census region,MSA status*,Percentage of  rented households,Percentage of  whites in the population
1,Yes,"NE, S",1,Less than 50,0 to 100
2,Yes,"NE, S",1,50 or more,0 to 100
3,Yes,"NE, S",2 – 5,0 to 100,Less than 90
4,Yes,"NE, S",2 – 5,0 to 100,90 or more
5,Yes,MW,1 – 4,0 to 100,Less than 60
6,Yes,MW,1 – 4,0 to 100,60 or more
7,Yes,MW,5,0 to 100,0 to 100
8,Yes,W,1 – 4,0 to 100,Less than 80
9,Yes,W,1 – 4,0 to 100,80 or more
10,Yes,W,5,0 to 100,0 to 100
11,No,NE,,0 to 100,0 to 100
12,No,"S, MW, W",1,0 to 100,0 to 100
13,No,"S, MW, W",2,0 to 100,0 to 100
14,No,"S, MW, W",3 – 5,0 to 100,0 to 100
*MSA status definition:,,,,,
1 = In the Center City of an MSA,,,,,
"2 = Outside the Center City of an MSA, but inside the county containing the Center City",,,,,
3 = Inside a Suburban County of the MSA,,,,,
4 = In an MSA that has NO Center City,,,,,
5 = Not in an MSA,,,,,
Source: 2002 Transportation Availability and Use Study,,,,,