5 Upper Arm Lengths. Anthropomorphic data are measurements on the human body that can track growth and weight of infants and children and evalu- ate changes in the body that occur over the adult life span. The resulting data can be used in areas as diverse as ergonomics and clothing design. The upper arm length of males over 20 years old in the United States is approximately Normal with mean 39.1 centimeters (cm) and standard deviation 2.3 cm. Draw a Normal curve on which this mean and standard deviation are correctly located. (Hint: Draw an unlabeled Normal curve, locate the points where the curvature changes, then add number labels on the horizontal axis)