Click on the following links. Please note these will open in a new window.

Web Exercises

1. Go to How to Use Data to Make a Hit TV Show.

Does collecting more data lead to better decision making? Competitive, data-savvy companies like Amazon, Google, and Netflix have learned that data analysis alone doesn't always produce optimum results. In this TED Talk, data scientist Sebastian Wernicke breaks down what goes wrong when we make decisions based purely on data—and suggests a brainier way to use it.

• Describe the purpose of the study described.
• What type of research design is used?
• What variables might the researchers be investigating to answer their research questions?
• How could the study be a factorial experimental design?

2. 1. Go to Understanding Interactions.

• Read the description of interaction effects.
• View the line graphs depicting main and interaction effects.
• Interpret the eight line graphs.
• After viewing the data in line graphs, click on “view as bar graph” for each of the graphs.
• Is it easier or more difficult to interpret the main and interaction effects? Why?
• Would you recommend using line or bar graphs?