There is emerging evidence of the relationship between timing of meals and weight regulation. In one study, researchers followed 202 early eaters and 200 late eaters through a 20-week weight-loss treatment. At the end of the 20 weeks, the pounds lost was recorded (a higher number means more weight lost, and a negative value means weight was gained). The research question for this study is: on average, is there a difference in weight change between the early eaters and the late eaters?

What is the null hypothesis, H0, for this scenario?

H0: E = L

H0: = 0

H0: E = L

H0: E > L

H0: E < L