Calculadora de Prueba de Rachas para Aleatoriedad
Realiza la prueba de rachas (runs test) para evaluar la aleatoriedad de una secuencia. Determina si los datos siguen un patrón aleatorio.
Expected Runs
13.0000
Desv Est2.3452
Z Statistic-2.1320
Expected Runs vs Count Type A
Fórmula
Wald-Wolfowitz Runs Test
mu = 1 + 2*n1*n2/(n1+n2)
Tests randomness of binary sequences.
Ejemplo Resuelto
15 As, 10 Bs, 8 runs.
- 01Expected = 13
- 02Z = -2.15, not random
Preguntas Frecuentes
What is a run?
A maximal consecutive sequence of same type.
Too few runs?
Suggests clustering or trends.
Significance?
Compare |Z| to 1.96 at alpha=0.05.
Aprender