A research article described a random sample of 584 smokers who tried to quit smoking by using either a nicotine patch or e-cigarettes (fake cigarettes producing nicotine in water vapor form). After six months, 7.3 percent of those using e-cigarettes had stopped smoking, compared with 5.8 percent of those wearing the patch. To see if quitting result is significantly associated with the method used, which of the following statistical inference procedure should we use?
1. Matched pairs t test
2. Two-sample t test
3. Chi-square test for goodness of fit
4. Chi-square test for two-way table