Question: 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

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.

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