DATA 123
 INPUT MANUFCD MANUFTYPE SEEK TRANSFER 
 V_PRICE L_PRICE;
 MARKUP=L_PRICE-V_PRICE;
 IBM 24X 30 150 100 130
 IBM 32X 30 250 120 150
 SONY 32X 20 200 100 130
 SONY 32X 12 280 120 150
 DEC 24X 30 100 130 150
 DEC 32X 30 250 180 200
 NEC 32X 15 200 100 120
 NEC 24X 20 200 100 120
 ;
 PROC SORT;
 BY SEEK; 
 RUN;
 PROC ANOVA; MODEL MARKUP=MANUFCD;
 PRINT; 
 RUN;