Leo is interested in the effects of sleep deprivation usage on number of calories consumed. he asks a group of 20 college students to spend the night in the sleep lab under one of the following conditions: no sleep, 2 hours of sleep, 4 hours of sleep, 6 hours of sleep, or 8 hours of sleep. leo measures how many calories are consumed by the students in the sleep lab, which is stocked with various food items. after collecting the data, leo performs an anova and finds that he can reject the null hypothesis. on the basis of this, what does leo know? a. he knows that there is a difference among the groups somewhere, but he does not know whare. b. he knows that a moderate amount of sleep is associated with incresed calorie consumption, but that fess aieep s anseclated with decreased calorie con c. he knows that sleeping any number of hours affects calorie consumption d. he knows that getting more sleep is associated with a greater consumption of calories.