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Samenvatting Statistiek 2 - Hoofdstuk 16 t/m 19 - Statistical Methods for Business and Economics $3.36   Add to cart

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Samenvatting Statistiek 2 - Hoofdstuk 16 t/m 19 - Statistical Methods for Business and Economics

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Overzicht/samenvatting van de stof voor de midterm van Statistiek 2. Hoofdstuk 16 t/m 19 van Statistical Methods for Business and Economics. Vooral de slides gebruikt, eigen aantekeningen en het boek.

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  • March 16, 2015
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Samenvatting

Statistical Methods for Business and Economis

Hoofdstuk 16 t/m 19 (stof midterm Statistiek 2)




Inclusief functies excel en GR TI-84 plus

,Statistiek 2

Terugblik normaal verdeling & hypothese testen

Hypothese test 1
1) H0: � ≤ �0
H1: � > �0

2) Test statistic:
x́−μ
Z= o
 Hypothese gemiddelde en standaardafwijking invullen

3) Reject H0  z ≥ zα
 z-waarde opzoeken in de tabel van de standaard normaal verdeling,
door te zoeken naar 1-α
 of via InvNorm(opp)

x́−μ
4) Val =
o
 alles invullen

5) H0 verwerpen als z ≥ zα
 conclusie trekken of H0 wordt verworpen of niet

Hypothese test 2
1) H0: � ≥ �0
H1: � < �0
2) Test statistic:
x́−μ
Z= o
3) Reject H0  z ≤ -zα
x́−μ
4) Val =
o
5) H0 verwerpen als z ≤ -zα

Hypothese test 3
1) H0: � = �0
H1: � ≠ �0
2) Test statistic:
x́−μ
Z= o
3) Reject H0  z ≤ -zα/2 or z ≥ zα/2
x́−μ
4) Val =
o
5) H0 verwerpen als z ≤ -zα/2 of z ≥ zα/2




2

, Chapter 16

Normaal verdeling: te gebruiken wanneer � en σ beide bekend zijn.

Hypothese test:




Intervalschatter:




Student (T) verdeling: te gebruiken wanneer � wel bekend is, maar als σ
nog onbekend

De verdeling:




Vrijheidsgraden (degrees of freedom): n-1

Intervalschatter:




3

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