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  • Statistisk størrelse med en kjent samplingfordeling. Beregnes for et utvalg og benyttes til å avgjøre utfallet av en statistisk test.


  • Hvis t-obs>tax (kritisk verdi), verdi er i forkastningsområdet, forkast h0, konkluder h1

  • 2 haler=ta2. hvis konf=90%, a=80%

  • Observator, t* = (p^ - p) / standard error mean.
  • Z, testobservator =(Punktestimat-H0) / ROT( (H0 * (1-punktestimat H0))/n )

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