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US Milk Consumption per Person vs US Imports

US Milk Consumption per Person and US Imports correlate at r = -0.29 over 54 years (1970–2023), p = 0.036. With the time trend removed, r = +0.19. Holds up after detrending.

Verdict: Holds up after detrending. Statistically significant (p = 0.036) and the association survives trend removal (detrended r = 0.19). Correlation still isn't causation, but this one isn't an obvious artifact.

Pearson r
-0.29
p-value
0.036
Years compared (n)
54 (1970–2023)
95% confidence interval
-0.51 to -0.02
Correlation with the time trend removed
+0.19

Sources

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Correlation does not imply causation. How the verdict is worked out.