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e
-stat: on-line statistical analysis
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e
-stat: on-line statistical analysis
Statistical tests
Test selection
Test
-----------------------------Choose test-----------------------------
- Dixon test for outlier in one sample
- Grubbs test for outlier in one sample
- Comparison of sample mean with known (reference) value
- Comparison of two sample means (equal SD)
- Comparison of two sample means (different SD)
- Paired comparison of two data groups
- One-factor analysis of variance (ANOVA)
- Comparison of sample variance with known value
- Comparision of two sample variances (F test)
- Cochran's test for variance outliers (several samples)
- Bartlett's test for equality of variances (several samples)
- Levene's test for equality of variances (several samples)
- Test for normality of data distribution
Test range
two-sided test
one-sided test
Confidence level
95
99
99.7
%
Statistical parameters
minimum value
maximum value
median
arithmetic mean
spread
sample standard deviation
standard deviation of sample mean
relative standard deviation
coefficient of variation
confidence interval
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