Sebaran-t student: Béda antarrépisi
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Budhi (obrolan | kontribusi) |
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Baris ka-1:
[[it:variabile casuale t di Student]]▼
Dina [[kamungkinan]] jeung [[statistik]], '''sebaran-<var>t</var>''' atawa ''' sebaran Student''' loba digunakeun keur nga-estimasi [[nilai ekspektasi|mean]] tina populasi [[sebaran normal|nu kasebar sacara normal]] dina waktu ukuran sampelna leutik. Dasar nu kawentar [[Student's t-test|Student's ''t''-test]] nyaeta keur [[statistical significance]] tina dua sampel [[mean]] anu beda, sarta [[interval kapercayaan]] keur dua populasi means anu beda.
Baris 9 ⟶ 7:
==Kumaha sebaran-''t'' student loba dipake==
Anggap ''X''<sub>1</sub>, ..., ''X''<sub>''n''</sub> ngarupakeun [[variabel acak]] [[statistical independence|bebas]] nu kasebar normal mibanda nilai
:<math>\overline{X}_n=(X_1+\cdots+X_n)/n</math>
Baris 25 ⟶ 23:
:<math>T=\frac{\overline{X}_n-\mu}{S_n/\sqrt{n}}</math>
sarta nembongkeun yen ''T'' ngabogaan [[
:<math>f(t) = \frac{\Gamma((\nu+1)/2)}{\sqrt{\nu\pi\,}\,\Gamma(\nu/2)} (1+t^2/\nu)^{-(\nu+1)/2}</math>
Baris 103 ⟶ 101:
* [http://members.aol.com/jeff570/s.html Earliest Known Uses of Some of the Words of Mathematics (S)] ''(Remarks on the history of the term "Student's distribution")''
[[Category:
[[en:Student%27s_t-distribution]]
▲[[it:variabile casuale t di Student]]
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