If we wanted to determine the appropriate sample size for looking at this relationship based on our alternative hypothesis, with Power 80%, Alpha set at 5%, and a large effect size of 0.8, how many people would we need to part in our study?

Alternative hypothesis: Hours of sleep have a significant effect on the consumption of coffee in a day.

Data:

Ave Cups Coffee	Avg Hours Sleep
1	8
2	8
3	7
5	5
2	7
4	6
3	6
8	4
1	9
5	6
5	5
2	7
6	4
2	8
4	6
1	7
2	7
3	6
4	5
5	5