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Slika - Shrani.si

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A. Juriˇ<strong>si</strong>ć in V. Batagelj: Verjetnostni račun in statistika 409<br />

✬<br />

✫<br />

XI. Veliki vzorec za (1 − α)%-ni interval zaupanja<br />

za deleˇz populacije:<br />

ˆp ± z α/2<br />

ˆpˆq<br />

n<br />

Privzeli smo: velikost vzorca n je dovolj velika,<br />

da je aprok<strong>si</strong>macija veljavna.<br />

Dobro pravilo (angl. rule of thumb) za izpolnitev pogoja<br />

“dovolj velik vzorec” je:<br />

nˆp ≥ 4 in nˆq ≥ 4.<br />

Univerza v Ljubljani ▲<br />

❙ ▲<br />

▲<br />

● ❙ ▲<br />

▲<br />

☛ ✖<br />

▲<br />

✩<br />

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