1/30/2013

Major Statistical Concepts from Chapter 2 Reading

• Observational Study versus Experiment
• Treatment versus Control Group
• Placebo and Placebo Effect
• Double-blind Experiment

Step-by-Step Process for Planning an Experiment

• Identify your objective.
• Decide what information to collect.
• Decide how to collect the information.
• Decide how many experimental units are needed.
• Use randomization to assign experimental units to treatments.
• Collect the data.
• Analyze the data.

Gummi Bear Experiments

Please summarize your Gummi Bear pilot experiment for class on Friday