Which data analytics approach revolutionized how Nike developed and marketed its running shoes in the 2010s?

The sports industry isn't just about what happens on the field - it's also driven by sophisticated retail analytics that shape how products are developed, marketed, and sold. Major sporting goods companies invest millions in understanding customer behavior and preferences. This poll tests your knowledge about the hidden world of sports retail analytics that influences everything from your favorite team's merchandise to how athletic footwear evolves season after season.

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Mass social media sentiment analysis of runner preferences
Nike+ digital ecosystem collecting real runner performance data
Focus group testing with Olympic athletes only
In-store purchase pattern tracking of color preferences