1. After examining a child at his 2-year checkup, the boy's pediatrician said that the z-score for his height relative to American 2-year-olds was - 1.88. Write a sentence to explain to the parents what that means.
2. Your company will admit to the executive training pro- gram only people who score in the top 3% on the executive aptitude test discussed in Exercise 1.
a) With your z-score of 2.20, did you make the cut?
b) What do you need to assume about test scores to find your answer in part a?
3. The pediatrician in Exercise 4 explains to the parents that the most extreme 5% of cases often require special treatment or attention.
a) Does this child fall into that group?
b) What do you need to assume about the heights of 2-year-olds to find your answer to part a?