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Slika - Shrani.si

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A. Juriˇ<strong>si</strong>ć in V. Batagelj: Verjetnostni račun in statistika 511<br />

✬<br />

✫<br />

VII. H0 : µ1 − µ2 = D0<br />

Če ne poznamo σ1 in/ali σ2,<br />

vzorce jemljemo neodvisno,<br />

spremenljivki sta vsaka na svoji populacij<br />

normalno porazdeljeni, njuni varianci nista enaki,<br />

n1 < 30 ali n2 < 30, potem<br />

T.S. = (y1 − y2) − D0<br />

<br />

s 2 1<br />

n1<br />

+ s2 2<br />

n2<br />

sledi<br />

t-porazdelitev z ν prostostnimi stopnjami,<br />

Univerza v Ljubljani ▲<br />

❙ ▲<br />

▲<br />

● ❙ ▲<br />

▲<br />

☛ ✖<br />

▲<br />

✩<br />

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