Section 3.2 Learning Check|<b>Please use the following information for questions 2-5.</b><br> Two hundred volunteers are involved with a cholesterol lowering experiment. Fifty are randomly selected and are given new drug and low fat diet, another randomly selected fifty are given the new drug and a regular diet.  The other 100 are randomly divided into two groups of equal size and recieved "placebo and low fat diet", "placebo and regular diet". The subjects' cholesterol levels are measured at the beginning and end of the experiment.|Please enter your Full Name:|Your Email Address:|Your ID Number or Password:|We say that the design of a study is biased if # racial or sexual prejudice is suspected. %% random placebos have been used. %% it systematically favors certain outcome. %% the researcher has been speculated in advance as to what the outcome might be. %%|Response variable for the experiment described above is # diet. %% drug used. %% change in cholesterol level. %% diet and drug type combination. %%|The treatment for the experiment described above is # drug used. %% diet. %% drug used and diet. %% cholesterol level. %%|The experimental units for the study described above is # the researcher. %% the 200 volunteers. %% the 100 volunteers that are assigned to the new drug. %% two types of drugs used. %%|The number of treatments for the study described above is # 1 %% 2 %% 3 %% 4 %%