Make sure to include: 1. explanation of the steps 2. identify the explanatory variable 3. create the conditional probabilities and present them with probability notation, fraction, decimal and percent 4. appropriate conclusion A large randomized trial was conducted to assess the efcacy of Chantrix for smoking cessation compared with bupropion (more commonly known as Wellbutrin or Zyban) and a placebo. Chantix is different from most other quit-smoking products in that it targets nicone receptors in the brain. attaches to them, and blocks nicotine from reaching them. while bupropion is an antidepressant often used to help people stop smoking. Generally healthy smokers who smoked at least 10 cigarettes per day were assigned at random to take Chantix, bupropion, ora placebo. The response variable is continuous cessation from smoking for Weeks 9 through 12 of the study. Here is a two-way table of the results. Is there association between treatment and smoking for weeks 9 through 12? Two-way table for smoking versus treatment Chantix Bupropion Placebo total No smoking in weeks 9- 12 Smoked in weeks 9-12 197 232 233 712 total 352 329 344 1025