50 boys and 50 girls with ADD (Attention Deficit Disorder) were selected for an experiment to test a new drug for the treatment of ADD. Half of the boys and half of

the girls were selected at random to receive the new drug, and the other half of each

group received a placebo. A reduction in symptoms of ADD was measured for each

subject. The basic design of this experiment is:

Design of Experiments Basics

Design of experiments (DOE) is a systematic method to determine the relationship between factors affecting a process and the output of that process. In other words, it is used to find cause-and-effect relationships. ... An understanding of DOE first requires knowledge of some statistical tools and experimentation concepts.

180 square centimeters

step-by-step explanation:

the answer is y = 11.54

hope this : )