For all 4 questions you will be answering parts 5 parts. Only looking for quick answers/explanations. I will give the highest rating!= :) (Also for part C I didn't know what they meant by calculator test but if you dont know either just ignore part C)

Problem 1: Observational studies suggest that moderate use of alcohol by adults reduces heart attacks and that red wine may have special benefits. One reason may be that red wine contains polyphenols, substances that do-good things to cholesterol in the blood and so may reduce the risk of heart attacks. The level of polyphenols in their blood was measured before and after the two-week period. Below are the percent changes in level for the subjects in both groups. Assume the normal conditions are met. Conduct a significance test (using ? = 0.05) to determine if the data suggests that red wine is more effective than white wine?

Red wine: 3.5 8.1 7.4 4.0 0.7 4.9 8.4 7.0 5.5 White wine: 3.1 0.5 -3.8 4.1 -0.6 27 1.9 -5.9 0.1