These are the answers I got:1. Smokers-non smokers

PSY24I Week 12 Chapter 14: t Test for Two Independent Samples Homework #IGA A group of researchers hypothesize that broken bones will take longer to heal among smokers versus nonsmokers. They test this question with a sample of 20 smokers, where the average time to heal was 32 days (SS = 1161), and a sample of 45 nonsmokers, where the average time to heal was 21 days (SS = 1179). Use the critical-value approach for the appropriate statistical test (where or = .05) to determine if there is a signicant difference in bone healing time between smokers and nonsmokers. 1. Identify the alternative hypothesis 2. List your degrees of freedom 3. List your estimated standard error 4. List your t test statistic (where: smokers nonsmokers) 5. List your critical r value(s) 6. Is the difference in healing time between smokers and nonsmokers statistically signicant? (YeslNo) 7. Calculate Cohen's d for the difference in healing time