Achild psychologist claims that video games increase the number of violent behaviors that children exhibit per week. to test the psychologist's claim, a school principal decided to conduct an experiment. the principal randomly selected 300 children and assigned 150 of the children to at least 30 minutes of video game play per day. the principal then assigned the remaining 150 children to no video game play.

after observing the children for one year, the principal reported that, on average, children who played at least 30 minutes of video games per day exhibited four more violent behaviors per week than children who did not play video games.

what can be concluded from the principal's report?
a.
it can be concluded that children who play at least 30 minutes of video games per day exhibit more violent behaviors per week than children who do not play video games.

b.
it can be concluded that video games have no impact on the number of violent behaviors exhibited by children per week.

c.
it can be concluded that children who do not play video games exhibit more violent behaviors per week than children who play at least 30 minutes of video games per day.

d.
there is not enough information to make any conclusions regarding the principal's report.