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Detecting Bias in Customer Surveys

HardStatistics & Probability00:00
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Your question is Detecting Bias in Customer Surveys. Take a moment with it on the right.

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Problem

Scenario

You're reviewing customer survey results and want to know whether the responses reflect the full customer base or a skewed subset. You need to assess whether the survey itself is biased.

Question

How would you determine whether a customer survey is biased?

What to Look For

  • Differences between respondents and the target customer population
  • Evidence of nonresponse or selection bias
  • Whether observed gaps are larger than expected from sampling noise
  • Whether weighting or redesign is needed before using results