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A. Juriˇ<strong>si</strong>ć in V. Batagelj: Verjetnostni račun in statistika 376<br />

✬<br />

Vrednosti z α/2 lahko razberemo iz tabele za verjetnosti za standardizirano<br />

normalno porazdelitev, ker velja<br />

✫<br />

Φ(z α/2) = 0, 5 − α<br />

2<br />

Podajmo vrednost z α/2 za nekaj najbolj standardnih tveganj:<br />

• α = 0, 10, z α/2 = 1, 65<br />

• α = 0, 05, z α/2 = 1, 96<br />

• α = 0, 01, z α/2 = 2, 58<br />

Univerza v Ljubljani ▲<br />

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☛ ✖<br />

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