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Unit 4: Inference for Quantitative Data: Means

Justifying a Claim Based on a Confidence Interval for a Population Mean or Population Mean Difference

Interpret a t-interval and its confidence level in context, use the interval to judge a claim about a mean or mean difference, and predict how its width changes.

Topic 4.3 · 10 min read

This lesson comes with the AP Statistics plan

In this lesson

  1. 01What the interval says
  2. 02What the confidence level says
  3. 03Using an interval to judge a claim
  4. 04What controls the width
  5. 05Worked examples
  6. 06Where students lose points

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