mqr.inference.variance.
size_1sample#
- mqr.inference.variance.size_1sample(effect, alpha, beta, alternative='two-sided', method='chi2')#
Calculate sample size for test of variance of a sample.
- Null-hypothesis
effect == var / var_0 == 1
- Parameters:
- effectfloat
Required effect size.
- alphafloat
Required significance.
- betafloat
Required beta (1 - power).
- alternative{‘two-sided’, ‘less’, ‘greater’}, optional
Sense of alternative hypothesis.
- method{‘chi2’}, optional
Numerically solves
power_1sample(passing method) equal to 1 - ‘beta’ by changing n. Only ‘chi2’ is available.
- Returns: