A local gym is struggling with attracting younger members and has decided to run a series of free classes for young adults to see if it results in increased membership. They decide to offer classes in Zumba, Fitness Boxing, Power Yoga, and Cycling. They have a list of 1000 young adults who live within 5 miles of their location and randomly assign 250 to each one of the four classes, sending them a coupon for 5 free sessions in the assigned class. One month after the last class, the gym staff calculate how many total new members from the 1000 person list they have and analyze the data to see which class was the most effective in generating new members. Which answers are true?

Answers

1. This experiment has a single design factor.

2. The design factor has four levels.

3. This experiment is a single replicate design because each young adult went to only one class.

4. This experiment follows the principle of randomization.