Question

A ballet instructor wants to determine the comfortableness of a new pointe shoe for his ballet students. He decides to divide up all his students based on experience level dancing, either beginner or advanced. He then decides to randomly give each beginner student either a easy, medium, or hard routine to dance with the new point shoes on. He does the same with the advanced students. At the end of each students routine, he has the students rate the comfort level of the shoe on a scale of 1-3.

What is the response variable? [a]

What is the treatment variable? [b]

The experimental units are: [c]

The comfort level recorded is a parameter or statistic? [d]

What experimental design is being used? [e]

Answer 1

[a] The response variable is comfort level of shoe on a scale of 1-3

[b] The treatment variable is the routine of dance (easy, medium or hard)

[c] The experimental units are the students (beginner or advanced)

[d] Comfort level is being observed so it is a statistic

[e] This is a randomized block design.