b) Do you have any concerns about the design? Select all that apply. A. Two different coupon types should not be studied at the same time. B. This experiment has no response variable. C. Since only one store in one city is used, the results cannot be generalized beyond that store in that city. D. A group that receives no coupon should be included in the experiment, to allow a better analysis of whether a coupon will affect sales. Part 3 c) Does this experiment satisfy the necessary conditions for a properly designed experiment? The principle of control is not satisfied comma since there is no control group and a comparison to baseline is important. is satisfied comma since the number of replicates is the same for each treatment combination. is satisfied comma since the food company selected the total sample size. The principle of randomization is satisfied, since values of the response variable are not known until they are observed. is not satisfied, since the number of people in each group was not left to chance. is not satisfied, since customers were not randomly assigned to groups. is satisfied, since customers were randomly assigned to groups. The principle of replication is not satisfied, since there are not multiple observations for every treatment. is satisfied, since there are multiple combinations of factor levels. is not satisfied, since there are not multiple combinations of factor levels. is satisfied, since there are multiple observations for e