How many more or fewer local stories is a newspaper owned by a national chain estimated to publish, while controlling for circulation? How many more or fewer local stories is a newspapers predicted to publish for every 1,000 subscribes, while controlling for whether it is a national chain?

Call: Im(formula = LocalStories ~ NationalChain + Circulation, data = newspapers) Residuals: Min 1Q Median 3Q Max -1916 . 84 -584 .19 -97 . 36 380. 10 2779.70 Coefficients : Estimate Std. Error t value pr(>It1) (Intercept) 1209.7500 102. 2361 11. 833