Calcolatore Test Chi-Quadro di Adattamento
Verifica se le frequenze osservate corrispondono a una distribuzione attesa.
Chi-square Contribution
0.5000
Deviation (O - E)-5.00
Gradi di Liberta4
Chi-square Contribution vs Observed Frequency
Formula
Chi-Square Goodness of Fit
chi2 = Sum((O-E)^2/E)
Tests observed vs expected frequency distribution.
Esempio Risolto
O=45, E=50, k=5.
- 01chi2 = 25/50 = 0.5
- 02df = 4
Domande Frequenti
Min expected?
At least 5 per category.
Significant result?
Observed differs from expected.
Vs independence test?
Goodness of fit tests one variable; independence tests two.
Impara