11.73 The article “Truth and DARE: Tracking Drug Education to Graduation” (Social Problems [1994]: 448– 456) compared the drug use of 288 randomly selected high school seniors exposed to a drug education program

(DARE) and 335 randomly selected high school seniors who were not exposed to such a program.

Data for marijuana use are given in the accompanying table. Is there evidence that the proportion using marijuana is lower for students exposed to the DARE program? Use a 5 .05.

n Number Who Use Marijuana Exposed to DARE 288 141 Not Exposed to DARE 335 181