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3075 Highland Parkway
Downers Grove, IL 60515
P 800.722.9001 |
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In planning to test a new format, offer, list or other variable, you wish to obtain results which may be reliable for future
decisions. Mailing adequate quantities is fundamental, both to obtain reliable results, and to control cost.
The following calculation considers the performance improvement you require of the test, the existing response rate of your
control, and the level of confidence you need when monitoring the results. The minimum sample size calculated is adequate
for the test as you have described it.
Fill in the blanks and press "Calculate" button below.
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