=+favor both before and after receiving the newsletter, and 6 were opposed both times. Is there evidence

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=+favor both before and after receiving the newsletter, and 6 were opposed both times. Is there evidence that the letter is effective in persuading people to favor a flat tax?

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Nonparametric Statistical Inference

ISBN: 9780824740528

4th Edition

Authors: Gibbons, Jean Dickinson, Chakraborti, Subhabrata

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