mqr.inference.variance.
power_1sample#
- mqr.inference.variance.power_1sample(effect, nobs, alpha=0.05, alternative='two-sided', method='chi2')#
Calculate power for test of variance of a sample.
- Null-hypothesis
effect = var / var_0 == 1
- Parameters:
- effectfloat
Effect size.
- nobsfloat
Number of observations in sample.
- alphafloat, optional
Significance level.
- alternative{‘two-sided’, ‘less’, ‘greater’}, optional
Sense of alternative hypothesis.
- method{‘chi2’}, optional
Only the ‘chi2’ is available. Calculates the power directly from the Chi-squared distribution.
- Returns: