Page 20, Problem 1.8 Exercise 1.2 introduced a study exploring the effect of antibiotic treatment for acute sinusitis. Study participants either received a 10-day course of an antibiotic(treatment) or a placebo similar in appearance and taste (control) At the end of the 10-dayperiod, patients were asked if they experienced improvement in symptoms. What are theexplanatory and response variables in this study?

1. Identify the variables of interest.

2. Label each variable as quantitative or categorical.

3. State the explanatory and response variable in this study.

4. Related to this study, identify two other variables: quantitative and categorical you would like to study with this population.