For questions 4 and 5, determine whether the study is observational or an experiment. If the study is an experimont identify the control and treatment groups, and whether bilinaing is needed. If the...

Question #5

Extracted text: For questions 4 and 5, determine whether the study is observational or an experiment. If the study is an experimont identify the control and treatment groups, and whether bilinaing is needed. If the study is observational, state whether it is a case-control study, and if so, identify the cases and controls. 4. There is a suspicion that zinc oxide, the white non-absorbent sunscreen traditionally worn by lifeguards, is more effective at preventing sunburns that lead to skin cancer than absorbent sunscreen lotions. A case-control study was conducted to investigate if exposure to zinc oxide is a more effective skin cancer prevention measure. The study involved comparing a group of former lifeguards that had developed cancer on their cheeks and noses (cases) to a group of lifeguards without this type of cancer (controls) and assess their prior exposure to zinc oxide or absorbent sunscreen lotions. 5. A social scientist distributes surveys to two groups. The first group is asked to identify how many of the following statements they agree with (not which ones, just how many). I am willing to support stronger immigration laws I think the war in Afghanistan will ultimately make the US safer I think presidential campaigns are too costly The second group was asked to do the same with an additional statement added I am willing to support a black Presidential candidate