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Lecture 19 – Sample Size and Summary

Lecture 19 – Sample Size and Summary. Insert P0 < P1 ; α ; ratio of sample sizes; desired power.  Total sample size. Total sample size =268 so 134 per group. Insert proportions in each cell Insert probability P0 in each stratum and the expected OR ; desired power.  Total sample size.

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Lecture 19 – Sample Size and Summary

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  1. Lecture 19 – Sample Size and Summary BIOST 536 Lecture 19

  2. BIOST 536 Lecture 19

  3. BIOST 536 Lecture 19

  4. Insert P0 < P1 ; α; ratio of sample sizes;desired power  Total sample size Total sample size =268 so 134 per group BIOST 536 Lecture 19

  5. Insert proportions in each cellInsert probability P0 in each stratum and the expected OR;desired power  Total sample size Total sample size = 1656 to detect a significant interaction between stratum and treatment (exposure) BIOST 536 Lecture 19

  6. BIOST 536 Lecture 19

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  15. Quick Review BIOST 536 Lecture 19

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