A veterinarian wants to perform a study at a local animal shelter where 200 dogs need training on behavior modification. The purpose of the study would be to determine if using a firm voice during training for 10 minutes improves a dog's learning behavior compared to not speaking during training for 10 minutes.

Part A: Describe an appropriate design for the study. (5 points)

Part B: The hypotheses for this study are as follows:

H0: There is no difference in the mean improvement of dogs during behavior modification for either treatment.

Ha: The mean improvement of dogs during behavior modification is greater for the firm voice treatment.

The shelters will allow trainers to use a firm voice during training if the null hypothesis is rejected. What are the possible Type I and II errors? Describe the consequences of each in the context of this study and discuss which type you think is more serious. (5 points)