![]() ![]() While it will probably take time to appreciate and use confidence intervals, let me assure you it’s worth the pain. People aren’t often used to seeing them in reports, but that’s not because they aren’t useful but because there’s confusion around both how to compute them and how to interpret them. They provide the most likely range for the unknown population of all customers (if we could somehow measure them all).Ī confidence interval pushes the comfort threshold of both user researchers and managers. At the same time they can be perplexing and cumbersome.īut confidence intervals provide an essential understanding of how much faith we can have in our sample estimates, from any sample size, from 2 to 2 million. They are one of the most useful statistical techniques you can apply to customer data. ![]()
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