According to this paragraph: Bio-engineers have developed a substance that stimulates the natural production of growth hormone by livestock animals so that they grow faster and bigger. To test the efficacy of the new bio-engineered substance, 40 one-day-old female chicks of the Rhode Island Red breed, obtained from a single supplier, were randomly assigned to two groups of 20 chicks each. The control group was injected with the test substance after it had been inactivated by heat, while the treatment group was injected with the active substance. After 30 days, the following chicken weights (in grams) were measured (Note: one chick in the control group died during the experiment): what are the minimum and maximum values for the Control Group?