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TI-84 Plus TI-84 Plus Silver Edition - ISA Ingeniería de Sistemas y ...

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Los mínimos cuadrados (MS) que componen Û son:<br />

FactorMS<br />

ErrorMS<br />

=<br />

=<br />

FactorSS<br />

------------------------<br />

Factordf<br />

ErrorSS<br />

---------------------<br />

Errordf<br />

La suma <strong>de</strong> los cuadrados (SS) que componen los mínimos cuadrados es:<br />

FactorSS ni( xi– x)<br />

2<br />

=<br />

I<br />

∑<br />

i = 1<br />

I<br />

ErrorSS = ( ni– 1)Sx<br />

2 ∑<br />

i<br />

i = 1<br />

Los grados <strong>de</strong> libertad que componen los mínimos cuadrados son:<br />

Factor df = I N 1 = numerador df <strong>de</strong> Û<br />

I<br />

Error df = ( ni – 1)<br />

= <strong>de</strong>nominador df <strong>de</strong> Û<br />

∑<br />

i = 1<br />

don<strong>de</strong>: I = número <strong>de</strong> poblaciones<br />

xi = media <strong>de</strong> cada lista<br />

Sxi = <strong>de</strong>sviación estándar <strong>de</strong> cada lista<br />

Apéndice B: Información general 661

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