Sample Size Calculators

Marketing Application - Marketing Tool - Sample Size Calculators

This sample size calculator includes 4 different tools for calculating sample size for testing and surveying.

1) Marketing Campaign Sample Size Calculator
2) Sample Size Calculator for Surveys and Testing
3) Finite Universe Sample Size Calculator for Surveys and Testing where there is a finite universe of people
4) Confidence Interval (Margin of Error) Calculator where both the sample size and population are known.

Use this Marketing Campaign Sample Size Calculator (1) to determine a sample size for testing the response to an upcoming B2B or B2C marketing campaign, or for a research survey in which you want to determine how many people to interview or send questionnaires (the minimum sample size). Enter the percentage response rate as a whole number and / or decimal (i.e., 10 for 10%, 1.25 for 1.25%, .5 for .50 % of a percent, etc.)

Use Sample Size Calculator (2) to compute the sample size for a survey or testing depending on the confidence level desired and the confidence interval (also known as margin of error) are known.

Use Finite Universe Sample Size Calculator (3) to compute the sample size for surveying or testing where there is a finite population that can be tested or surveyed.

Use the Confidence Interval (4) Calculator to determine the confidence interval or margin of error when you know the sample size and the population size that is being surveyed or tested.

----------------------------------------------

DWS Associates (D.B.A "DWSA Software")
End-User License Agreement

This license statement and limited warranty constitutes a legal agreement ("License Agreement") between you (either as an individual or a single entity) and DWS Associates (D.B.A. "DWSA Software") for the software product named "(Enter Product Name Here)" ("Software Product"), including any software, media, and related on-line, printed or electronic documentation. By installing, copying, or otherwise using the Software Product, you agree to be bound by the terms of this License Agreement. If you do not agree to the terms of this License Agreement, do not install, copy, or use the Software Product.

This license agreement shall supersede any verbal, or prior verbal or written, statement or agreement to the contrary.

1. OWNERSHIP

The Software Product is proprietary to DWS Associates (D.B.A. DWSA Software. The Software Product is licensed, not sold, to you notwithstanding any reference herein to "purchases." You acknowledge and agree that: (a) the Product is protected under copyright laws and international copyright treaty; (b) DWSA Software) retains all copyrights and other intellectual property rights in the Software Product; (c) there are no implied licenses under this License, and any rights not expressly granted to you hereunder are reserved by DWSA Software; (d) you acquire no ownership or other interest (other than your license rights) in or to the Software Product; and (e) DWSA Software owns all copies of the Software Product, however made. You agree that you will not, at any time, contest anywhere in the world DWSA Software's ownership of the Software Product, nor will you challenge the validity of DWSA Software's rights in the Software Product.