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Samenvatting Beschrijvende en Inferentiële Statistiek (S_PMBIS) deeltentamen 2

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Samenvatting van de colleges en het boek.

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Uploaded on
March 3, 2024
File latest updated on
March 4, 2024
Number of pages
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Written in
2023/2024
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Inhoudsopgave
Herhaling....................................................................................................................................................... 2

Module 6 Betrouwbaarheidsintervallen......................................................................................................... 3

Module 7 Het toetsen van hypothesen........................................................................................................... 8

.................................................................................................................................................................... 11

Module 8: Het vergelijken van twee gemiddelden........................................................................................12
T-test uitvoeren in SPSS..................................................................................................................................13

Module 9: Het verband tussen twee categorische variabelen........................................................................15

SPSS............................................................................................................................................................. 18
Gegevens verschillende groepen....................................................................................................................18
Groepen vergelijken........................................................................................................................................18
Bepaalde cases zien in je analyse...................................................................................................................19
Kruistabel maken............................................................................................................................................19
Chi-kwadraat...................................................................................................................................................19




1

, Herhaling
Centrale limietstelling:
- N>= 30, bij gemiddelden;
- N>=15, bij proporties.
Intercept = beginpunt van de regressielijn.
Meetniveaus:
1. Categorische variabelen:
a. Nominale variabelen: bestaat uit verschillende categorieën die van elkaar
verschillen waarbij er geen rangorde is (de een is niet beter dan de ander),
bijvoorbeeld geslacht;
b. Ordinale variabelen: bestaat uit verschillende categorieën waarbij er wel een
rangorde, zoals wie er beter is. Enige is dat de je niks over de verschillen
tussen de categorieën kunt zeggen.
2. Kwantitatieve variabelen: variabelen die getallen als waarden hebben, zoals inkomen,
leeftijd en gewicht. zit rangorde in, een is beter dan het ander.
a. Discreet: hele getallen, bv. aantal kinderen (0, 1, 2);
b. Continu: variabele waarbij oneindig veel mogelijkheden zijn in waarde, zoals
tijdsduur 49,999… minuten.




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