A scientist conducted an experiment to measure the effect of

Last updated: 7/15/2022

A scientist conducted an experiment to measure the effect of apple cider vinegar on blood sugar levels. The scientist randomly selected 200 adults and randomly assigned them to two subject groups. The first subject group received an apple cider vinegar supplement, and the second subject group received a placebo. The scientist was aware of which subjects were assigned to each group. This experiment is know which treatment group each subject is in. because