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Blz. 16-11
5. T-Test: 1 µ.: hypothesetesten van een steekproef voor het
populatiegemiddelde µ voor kleine steekproeven met een onbekende
variantie.
6. T-Test: µ1−µ2.: hypothesetesten voor het verschil van het
populatiegemiddelde µ
1
- µ
2
voor kleine steekproeven met onbekende
populatievarianties.
Probeer de volgende oefening:
Voorbeeld 1
– Voor µ
0
= 150, σ = 10, x = 158, n = 50 en voor α = 0.05
test de hypothese H
0
: µ = µ
0
, tegen de alternatieve hypothese H
1
: µ µ
0
.
Druk op ‚Ù——@@@OK@@@ om de betrouwbaarheidsintervaloptie in de
rekenmachine te activeren. Druk op @@@OK@@@ om optie 1 te selecteren. Z-Test: 1 µ.
Voer de volgende gegevens in en druk op @@@OK@@@:
Vervolgens wordt u gevraagd de alternatieve hypothese te selecteren:
Selecteer µ 150. Druk dan op @@@OK@@@. Het resultaat is:
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