I took a quick look at game sales and homicide rates.
Regression analysis was made using R (version 3.1.1) and lm. 2011 was year where I had null data points minimised.
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 5.1644 1.8820 2.744 0.0158 *
adj.game.sales -0.3391 0.2475 -1.370 0.1922
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Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
Residual standard error: 5.507 on 14 degrees of freedom
Multiple R-squared: 0.1183, Adjusted R-squared: 0.05527
F-statistic: 1.878 on 1 and 14 DF, p-value: 0.1922
I assumed that violent homicides are linearly distributed.
While regression shows downward trend, the analysis does not suggest significant connection between game sale and homicide rates.
Data:
