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Response Rates
Test Results
Min Sample
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Total Cost of Document Ownership

RR Donnelley
Response Marketing Services
3075 Highland Parkway
Downers Grove, IL 60515
P 800.722.9001
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Designing statistical confidence into your testing strategy is one of the most important aspects of developing your test grid. The following statistical direct marketing calculators can help you answer the five most frequently asked questions about sample size, response rates, and statistical significance. Bookmark this page so that our statistical calculators become one of your direct marketing tools.

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