13.07.2015 Views

Investigación de la telefonía movil.pdf

Investigación de la telefonía movil.pdf

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n=N * Zp * q2 2( N −1) * E + Z * p * q2n =(409379)(1,96)(0,70)(0,30)22( 409379 −1 )(0,05)+ (1,96) (0,70)(0,30)2n =(409379)(3,8416)(0,21)( 409378) (0,0025) + (3,8416)(0,21)(330260,78)n =(1023,45) + (0,81)(330260,78)n =(1024,26)n =322,44 => 322El tamaño <strong>de</strong> <strong>la</strong> muestra que permitirá obtener información con un 95% <strong>de</strong>confiabilidad y un 5% <strong>de</strong> margen <strong>de</strong> error; es <strong>de</strong> 322 personas cuyas eda<strong>de</strong>s esténcomprendidas entre 17 y 27 años <strong>de</strong> edad, consi<strong>de</strong>rando un Universo <strong>de</strong> 409379jóvenes que son los potenciales clientes <strong>de</strong> <strong>la</strong> promoción 1,2,3.

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