Determine whether the situation is an experiment or an observational study. A manufacturer of insect repellant wants to see if it is effective in repelling bugs. They separate 100 people randomly into 2 groups of 50. Then apply each insect repellant to each person in one of the groups. The other group does not receive repellant. Everyone is exposed to mosquitos for 15 minutes and the number of mosquito bites are recorded. Experiement Observational Study