| An FICT was designed to test the effectiveness of naltrexone. an opiate receptor antagonist, as a treatment for alcohol dependence. Subjects with chronic severe alcohol dependence were randomly assigned to either 3 months of naltrexone treatment or 3 months at placebo treatment. The number at drinks per drinking day was compared between the two groups. Let y 1 = population mean number at drinks per drinking day for those on Naltrexone and p2 = population mean number oi drinks per drinking day for those on placebo. The data from the study are summarized in the table below. Naltrexonein1=196i Placebo inz=195) Mean Number of drinks per drinking day I71 = 10. 5 Standard Deviation of Number of drinks per drinking day S = 8.0 S = 7.0 Investigators want to test if there is a difierence between the two groups using a 5% significance level. What is the most appropriate test to address the investigators' research question? 0 Paired t-test O Pearson's Chi-Squared Test 0 Two-sample t-test assuming unequal variances O Two-sample t-test assuming equal variances O Chi-Squared Goodness-oi!\" "5-" : Screenshot 1