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Probability and Statistics

Independent two-sample mean comparisons

Welch’s t procedures compare two means without assuming equal population variances.

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Chapter 9: Comparing groups and categorical data6 lessons · 25 min
  1. 1Independent two-sample mean comparisons4 min
  2. 2Paired mean comparisons4 min
  3. 3Two-proportion comparisons4 min
  4. 4Chi-square test of independence4 min
  5. 5Sparse counts and exact tests3 min
  6. 6Challenge: Comparing groups and categorical data6 min
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This lesson is part of the Probability and Statistics course.

Example plan3 lessons · 12 min

Independent two-sample mean comparisonsComparing groups and categorical data4 min
Paired mean comparisonsComparing groups and categorical data4 min
Two-proportion comparisonsComparing groups and categorical data4 min

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