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Ben B's avatar

I'm glad to hear your brother is helping you out with this. I was talking out loud listening to HITD, asking why you're using spreadsheets but not their functionality. You're gonna be a freak in those sheets.

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Paul Raich's avatar

Since your brother is coming over, he can add a standard deviation calculation for each team in excel. In this way, you can better understand if rule changes are effecting play count or if it could just be randomness.

Second you can use the correlation and R squared excel functions to test if other factors are affecting the play count stat. You could use an offensive or defensive SP+ rating versus play count. I suspect offensive or defensive competency or lack their off might factor into the play count. Weather might be another factor to test.

Third, it might be a worthwhile to have a discussion on how to manage outliers. So the single game of just 45 plays for Michigan might alter the whole season average. It might be rational to exclude that data point. Anyway somethings to consider..

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