A researcher investigates body image scores in a group of 50 teenagers. They measure body image at study day one for all participant, then for a week the adolescents are only allowed on social media once day for 20 minutes. Then, the researchers measure body image after one week in all the teenagers in the study.The researcher conducted a t test. The researcher found t(48) = 6.752, p =.0003. How many people were in the study? ___ Write out the results (indicate whether you reject or fail to reject the null, what there significant differences