Problem 1. A study was done to investigate if number of friends is a predictor of aggression in children, as measured by a checklist ranging from 0-10. A sample of 48 participants was used. Assume an...

Problem 1. A study was done to investigate if number of friends is a predictor of aggression in children, as measured by a checklist ranging from 0-10. A sample of 48 participants was used. Assume an alpha level of .05.

Select the appropriate null hypothesis.