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Summary

Samenvatting Onderzoeksvaardigheden 2 / Statistiek 2

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Een duidelijke samenvatting van de belangrijke tentamenstof.

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Summarized whole book?
No
Which chapters are summarized?
De belangrijke delen voor het tentamen
Uploaded on
January 20, 2015
Number of pages
4
Written in
2015/2016
Type
Summary

Subjects

Content preview

Binomiaal

Observed Asymp. Sig.
Category N Prop. Test Prop. (1-tailed)

Voor of Group 1
tegen nieuw voorstander 50 ,8 ,7 ,014(a)
formaat

Group 2 tegenstander 10 ,2

Total 60 1,0




Fractie 0.8

Tekst zegt minimaal 70%

H0: Minder <70

H1: Meer >70

T-toets

Std. Error
N Mean Std. Deviation Mean

het aantal werknemers
50 16,46 9,087 1,285
van het bedrijf




Test Value = 20

95% Confidence Interval
of the Difference
Mean
t df Sig. (2-tailed) Difference Lower Upper

het aantal werknemers
-2,755 49 ,008 -3,54 -6,12 -,96
van het bedrijf




H0: BRON/AANNAME =20 = 0 hypothese

H1: = BEWERING NIET 20




Chi Square

, fouten in de leveringen Total
veel normaal weinig
De bedrijfsgrootte klein Count 13 4 2 19
ingedeeld in Expected Count 7,6 4,9 6,5 19,0
klassen
middelgroot Count 3 2 2 7
Expected Count 2,8 1,8 2,4 7,0
groot Count 4 7 13 24
Expected Count 9,6 6,2 8,2 24,0
Total Count 20 13 17 50
Expected Count 20,0 13,0 17,0 50,0



Asymp. Sig.
Value df 2-sided)
Pearson Chi-Square 13,418(a) 4 ,009
Likelihood Ratio 14,387 4 ,006
Linear-by-Linear
12,904 1 ,000
Association
N of Valid Cases
50



H0: GEEN VERBAND

H1: WEL VERBAND

Toetsingsgrootheid: Stap3: hier nemen we de kruistabel. (hier hoef je
geen zijdigheid van de toets aan te geven.

Voorwaarden Chi square toets:

1. Alle waarden hoger dan 1
2. Maximaal 20% is kleiner dan 5
 Als je niet aan deze voorwaarden voldoet kan er geen conclusie worden
getrokken.

ALTIJD 2 ZIJDIGE TOETS




Verschillentoets

, Group Statistics

Het geslacht van de N Mean Std. Deviation Std. Error
werknemer Mean

man 164 12,49 11,658 ,910
Het aantal dienstjaren
vrouw 148 15,35 13,970 1,148



Independent Samples Test

Levene's Test for Equality of t-test for
Variances Equality of
Means

F Sig. t

Equal variances assumed 3,396 ,066 -1,972
Het aantal dienstjaren Equal variances not
-1,954
assumed



Independent Samples Test


t-test for Equality of Means


df Sig. (2-tailed) Mean Difference



Equal variances assumed 310 ,049 -2,864
Het aantal dienstjaren
Equal variances not assumed 287,438 ,052 -2,864




Independent Samples Test


t-test for Equality of Means


Std. Error 95% Confidence Interval of the
Difference Difference


Lower Upper


Equal variances assumed 1,452 -5,721 -,007

Het aantal dienstjaren
Equal variances not
1,465 -5,748 ,021
assumed




H0: gem.leeftijd(man) = gem.leeftijd(vrouw)

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