From statistics using technology textbook. Consider 1.3.2 homework section 1.3 problems 17,18 and 19.

Consider 1.3.2 Homework Section 1.3 Problems 17, 18, and 19. Choose the most appropriate study type for each of the following their described studies. Study types may be chosen more than once or even not at all. Problem 17 [ Choose ] [ Choose ] Problem 18 cross-sectional Problem 19 prospective retrospective