Cookies Mary Beth, Nigel, and Molly want to design an experiment to find the recipe for the best chocolate chip cookies. They will try to keep the size of the cookies the same, but use cooking times of 10 and 15 minutes. They will use three different temperatures: 325° F, 375° F and 425° F and use either 5 or 10 chips in each cookie. Six of their friends will taste the cookies and rank them in order.

1. What are the factors and levels?

2. What does blinding mean in the context of this experiment? Is it double-blinded?

3. How many different cookies will each judge taste?

4. What kind of variable is the response variable?

5. What are some of the challenges of carrying out the experiment?