You are listening to a news report that claims a new study has found convincing evidence that a particular weight-loss product is much more effective than diet and exercise which statement would be an example of scientifically "convincing" evidence in this case?

1.) all the participants lost at least 10 pounds
2.) only the participants who used the weight-loss product lost weight
3.) the participants who used the weight-loss product lost an average of 3 pounds, whereas the participants who used diet and exercise lost an average of 2 pounds.
4.) the study has a hypothesis.
5.) statistical tests showed significantly more weight loss in the participants who used the weight-loss product than those who relied on diet and exercise.