What is your default base size for studies run on Zappi? Is that enough?

The products available on Zappi’s platform are intended to be analysed at the total population level. Most tools on our platform have a default base size of N = 150, which users can increase (or decrease) when configuring their sample options. N = 150 offers a statistically robust base at a competitive price point when looking at the total population. If you want to conduct subgroup analysis, the option to increase this sample size is available. We would recommend at least 50 interviews of each subgroup as an absolute minimum, and 100 interviews for a more reliable read.

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