For question 16) I am confused when they ask how to figure out a BMI that is .75 standard deviations below the average. How do you set that up?

16. The U.S. Center for Disease Control (CDC) collects anthropometric (weight, height etc..) data on large samples of US youth, both male and female, and uses these data to create growth charts, which essentially characterize the distributions of these measures by age and sex. For example, for 18 years old males, the mean body mass index (BMI) is 21.9 (kg/m ) with a standard deviation (SD) of 3.2 (kg/m=). Physicians (and patients) can use these data to figure out how individual BMI values compare relative to the age and sex specific distribution. Suppose you are a physician and you are screening patients at a health fair. The following describes some of the men you have screened. You may assume the distribution of BMI values for 18 year-old males is a normal distribution. - Male 3 had a BMI of that was .75 SDs below the average. What was his BMI measure? a. 17.1 X - 21.9 b. 18.7 C. 19.5 0. 75 SDs below aug. S = 3. 2 d. 20.3 17. The U.S. Center for Disease Control (CDC) collects anthropometric (weight, height etc..) data on large samples of US youth, both male and female, and uses these data to create growth charts, which essentially characterize the distributions of these measures by age and sex. For example, for 18 years old males, the mean body mass index (BMI) is 21.9 (kg/m=) with a standard deviation (SD) of 3.2 (kg/m=). Physicians (and patients) can use these data to figure out how Individual BMI values compare relative to the age and sex specific distribution. Suppose you are a physician and you are screening patients at a health fair, You may assume the distribution of BMI values for 18 year-old males is a normal distribution. - Estimate a range of "normal" BMI values, le: a range that contains the middle 95% of the values in the population of 18 year old males. x - 21.9 a. (15.5, 28.3) b. (17.1, 26.7) 5 = 3.2 c. (13.9, 29.9) 2.5 % = 21.9 - (2 x 3. 2 ) = 15.5 d. (19.5, 22.7) 18 21.9 + ( 2 x 3.2) = 28: 3 The U.S. Center for Disease Control (CDC) collects anthropometric (weight, height etc..) data on large samples of US youth, both male and female, and uses these data to create growth charts, which essentially characterize the distributions of these measures