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Samenvatting Statistiek hoorcollege 9

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aantekeningen van hoorcollege 9

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Uploaded on
May 30, 2017
Number of pages
4
Written in
2016/2017
Type
Summary

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Statistiek HC9
Het vermogen van een toets
Het onderscheidend vermogen / power van een toets is de kans op het verwerpen van
de nulhypothese als deze in werkelijkheid niet waar is
Een groot onderscheidend vermogen is dus wenselijk want het impliceert een hoge kans
op het terecht verwerpen van de nulhypothese
Power bepalen
1. Bepaal de Zcv onder H0 (bij gegeven α en richting van de toets)
2. Bepaal het steekproefgemiddelde ẍ cv dat bij Zcv hoort onder H0
3. Reken kritieke grenswaarde ẍ cv om naar de z H1 – waarde onder H1
4. Het onderscheidend vermogen is gelijk aan de kans P (Z > z H1 | H1)
Power is bèta β
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Hallo allemaal, ik ben Hanneke en ik studeer psychologie aan Tilburg University. Ik ben een groot fan van samenvattingen maken en deze deel ik graag met jullie. Alvast veel succes met leren!!

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