Case 4: A corporate sponsor offered SPH $1 million dollars to increase students' daily consumption of orange juice. Students were randomly assigned into four study groups.

Group 1 received daily emails about the benefits of drinking orange juice in the morning.

Group 2 received free cases of orange juice.

Group 3 received both the emails and the free cases of orange juice.

Group 4 did not receive anything.

At the end of the semester, all four groups of students completed a survey. They were all asked to indicate how many days a week they drank orange juice in the morning (0, 1, 2, 3, 4, 5, 6, 7).

1. Develop an evaluation question.
2. Identify the independent variable(s) and determine whether it will be nominal, ordinal, or numeric (numeric=interval or ratio).
3. Identify the dependent variable(s) and determine whether it will be nominal, ordinal, or numeric (numeric=interval or ratio).
4. Decide which statistical method would be most appropriate for determining if the program effect was significant.