- Found a statistically significant correlation
- Between purchases of beer and purchases of diapers
- Discussion: The reason
- Fathers stopped at Wal—Mart on Friday evening to buy diapers their babies, so they could no longer go down to the pub as often,
- They would buy beer as well
- As a result,
- Wal-Mart put the diapers next to the beer
- The sales of both were increased