DATA FCAT;
INPUT MATH READING POVERTY;
cards;
166.4 165 91.7
159.6 157.2 90.2
159.1 164.4 86
155.5 162.4 83.9
164.3 162.5 80.4
169.8 164.9 76.5
155.7 162 76
165.2 165 75.8
175.4 173.7 75.6
178.1 171 75
167.1 169.4 74.7
177 172.9 63.2
174.2 172.7 52.9
175.6 174.9 48.5
170.8 174.8 39.1
175.1 170.1 38.4
182.8 181.4 34.3
180.3 180.6 30.3
178.8 178 30.3
181.4 175.9 29.6
182.8 181.6 26.5
186.1 183.8 13.8
;
run;

PROC REG data=FCAT;
MODEL math = poverty / CLB alpha=0.01;
run;