Sample size (or number of clusters) by treatment arms
[100] non-premium 50,000
[100] non-premium 200,000
[50] discrete premium, Top 5, Luck 50,000
[50] discrete premium, Top 5, Luck 200,000
[100] discrete premium, Top 5, Merit 50,000
[100] discrete premium, Top 5, Merit 200,000
[50] discrete premium, Top 20, Luck 50,000
[50] discrete premium, Top 20, Luck 200,000
[100] discrete premium, Top 20, Merit 50,000
[100] discrete premium, Top 20, Merit 200,000
[50] conspicuous premium, Top 5, Luck 50,000
[50] conspicuous premium, Top 5, Luck 200,000
[100] conspicuous premium, Top 5, Merit 50,000
[100] conspicuous premium, Top 5, Merit 200,000
[50] conspicuous premium, Top 20, Luck 50,000
[50] conspicuous premium, Top 20, Luck 200,000
[100] conspicuous premium, Top 20, Merit 50,000
[100] conspicuous premium, Top 20, Merit 200,000