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Slika - Shrani.si

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A. Juriˇ<strong>si</strong>ć in V. Batagelj: Verjetnostni račun in statistika 391<br />

✬<br />

✫<br />

X =<br />

n<br />

i=1 xi<br />

n<br />

n<br />

i=1 (xi − X) 2<br />

= 49<br />

7<br />

s 2 =<br />

n − 1<br />

= 22<br />

6<br />

Iz tabele za t–porazdelitev preberemo, da je<br />

in interval zaupanja je<br />

= 7,<br />

= 3, 67.<br />

t α/2(n − 1) = t0,05(6) = 1, 943<br />

7 − 1, 943 ·<br />

1, 9<br />

√ 7 < µ < 7 + 1, 943 ·<br />

7 − 1, 4 < µ < 7 + 1, 4.<br />

1, 9<br />

√ 7<br />

Univerza v Ljubljani ▲<br />

❙ ▲<br />

▲<br />

● ❙ ▲<br />

▲<br />

☛ ✖<br />

▲<br />

✩<br />

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