A dog food company want to compare a new lower-calorie food with their standard food to see if it is effective in helping inactive dogs maintain a healthy weight. They have found dog owners willing to participate in the trial. The dogs are first classified as small, medium, or large breeds, and then they randomly select some of each type of dog for one of two groups. One group eats nothing but the low-calorie food and the other eatsnothing put the companys original food. After 6 months, the dogs weights will be checked.

a. What is the population of interest?

b. Which group is the control group?

c. Draw a table/diagram illustrating the treatments.