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Formuleblad-Samenvatting-Statistiek 2

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Formuleblad die je moet gebruiken bij het tentamen en wat extra informatie.

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Hoofdstuk 9


1. ^y =a+bx

2. SSE=∑ ( y −^y )2

^y =een voorspelde waarde uit de regressielijn

3. TSS=∑ ¿ ¿ y=gemiddelde waarde



4. E ( y )=α + βx Stel je hebt E ( y )=−5000+ 3000 ( 12 ) =31000

Het gemiddelde dan 31000 is maar mensen die ook een score van 12 hebben hoeven niet per

sé 31000 te scoren. E betekent hierbij verwachte waarde.




2
SSE ∑ ( y− ^y )
5. S ¿ =√ De conditionele variantie ^y ¿Standaard error of the estimate)
n−k −1 n−k−1





2
∑ ( y− y ) TSS
6. s y =SD van y ( s y )=√ = De marginale variantie y
n−1 n−1

∑ ( x−x )2
7. s x =SD van x ( s x )=√ De marginale variantie van x
n−1

sx
8. r = ( ¿b. Correlatie
sy

E1 −E2 TSS−SSE
=∑ ¿ ¿ ¿
2
9. r = = Determinatiëcoëfficiënt
E1 TSS

SSE
10. s van b=√ Hetzelfde als 5.
n−2

b
11. t= T toets
se

12. b ± t ( se ) BHI

13. E ( y )=α + βx of y=α + βx +ε Error term




Hoofdstuk 11

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November 14, 2024
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