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Standardfeil, standard error mean, Std error, SEx

Standardfeil, standard error mean, Std error, SEx

Owned by BL
Last updated: 25.Mar 2018

Formler

  • Enten:
    • Standardavvik/rot(n)
    • ROT( p*(1-p))/n )
      • ROT( (H0 * (1-punktestimat H0))/n )
    • ROT((H0*(1-H0))/n)
  • Standardfeil ved sammenligning av 2 grupper:
    • rot((Standardavvik1^2/n1)+(Standardavvik2^2/n2))
    • Feks
      • n1=106
      • n2=115
      • S1=1,24
      • S2=1,2
      • Feilmargin, E = rot((1,24^2/106)+(1,2^2/115))=0,16418

Undertemaer:

Standardfeil:

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