/* Sample SAS code and data for problem 2.17 */

DATA computer;

INPUT attack $ percent99 percent01;

cards;

inside 7 4
outside 38 47
both 41 22
dontknow 14 26
;

title 'Problem 2.17: Computer Use';

proc insight;
open computer;
dist percent99 percent01;
run;

/* To produce bar graphs of percent99 and percent01: */
/* After running PROC INSIGHT and before closing the PROC INSIGHT displays, */
/* click on the "Analyze" menu, then choose "Histogram/Bar Chart". */
/* Click ATTACK, then click "Y".  Click PERCENT99, then click "FREQ".*/
/* Click "OK". */
/* Again click on the "Analyze" menu, then choose "Histogram/Bar Chart". */
/* Click ATTACK, then click "Y".  Click PERCENT01, then click "FREQ".*/
/* Click "OK".  Two bar graphs side by side should appear. */