Directions:Read each question carefully and be sure to address the question posed. Use complete sentences when appropriate (i.e. Explain, Why or Why not?).Writing must be legible, otherwise, teacher has the right to not grade. PLACEin tray by due date.

1. In order to investigate a rumor that there is a greater than expected number of girls among the children of chemists, Science magazine conducted an informal survey of eight chemistry departments. A secretary in the chemistry department at Indiana University, Bloomington thought there might be something to this rumor and made sure that every one of the 34 faculty members in her department who have children responded to the Sciencesurvey. Altogether, these Indiana chemists have 53 (56%) girls and 41 (44%) boys.

1. Was this an observational study or an experiment? Justify your answer.

1. Does this study give convincing evidence that chemists produce more girl babies than boy babies? Why or why not?