Juan is the controller at his company and, as such, must make sure that he and all the other managers operate within their budgets. The workers in Juan’s department can no longer keep up with the work load and a new position is needed. However, Juan’s budget will not cover the salary for an additional person. Juan’s dilemma is known as:

A psychologist is studying gender relationships in childhood and early adolescence. Students from each grade are separately observed during lunchtime at school in order to assess their seating preferences. The researcher is conducting a _______

a. cross-sectional study. b. longitudinal study. c. single-blind study. d. double-blind study.

In a normal distribution with mean 500 and standard deviation 100, about 15.87% of the scores will be lower than 400.

a. true b. false