To use the sample size calculator
1.
On the Sample tab of the Sample process configuration dialog, click Sample Size Calculator.
The Sample Size Calculator window appears.
2.
Under Response Rate Estimate, enter your estimates of the minimum and maximum response rates expected from your marketing campaign.
These two values must be percentages between 0-100. The lower the expected response rate, the larger the sample size must be to achieve the same level of accuracy.
3.
Under Modeling Estimate, provide modeling estimate information.
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If you are not using a model, select No Model.
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If you are using a model, select Model Performance, then enter the appropriate model performance percentage. This represents the area under the lift curve and is reported in the Model Performance report.
4.
To compute the required sample size for a specific error bound:
a.
In the Error Bound (+ or -) field, enter a value 0 - 100 for the acceptable error bound.
b.
Click Compute Sample Size.
The minimum sample size required to achieve the specified error bound is displayed in the Min. Sample Size text box.
5.
To compute the error bound expected with a particular sample size:
a.
Enter the sample size in the Min. Sample Size text box.
b.
Click Compute Error Bound.
The error bound is displayed in the Error Bound (+ or -) text box.
6.
When you are finished, click Done.
The Sample Size Calculator window closes.
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You can copy and paste the calculated sample size to use in the Sample process configuration dialog.
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