(02.04 MC) Forty infants are being studied to test the effe…
(02.04 MC) Forty infants are being studied to test the effectiveness of diaper capacity on four types of diapers: A, B, C, and D. The researcher calculates the diaper’s actual capacity compared with its listed capacity. The response variable is the amount of capacity after one hour of treatment. Previous studies have shown the capacity may vary based on a subject’s activity level. How should the subjects be blocked? Explain. (4 points)