1.2.1. What visual impression do you have from examining these plots?

1.2.2. Are there visual differences between the mean of the responses?

1.2.3. If there is a visual difference between the mean of the responses, do you think this is the result of within-group variation or between-group variation?

Boxplot of Circuit 1, Circuit 2, .. Data 30 20 Circuit 1 Circuit 2 Circum } Circuit 4