Stats Tester, Easy statistics calculator

1. The max data number for each statistics is 100.

2. Each statistics method has useful [Help], [Example] and [Share] buttons.

3. Some tests have graph functions.

Detailed usage can be found in the "How to use" section below the list of statistics methods.

### Parametric statistics ###

1. Mean, SD, SEM, Skewness, Kurtosis

- Arithmetic, Geometric and Harmonic means

- Standard Error, Standard Deviation

- Confidence interval

- Sum

- Sum of Square

- Variance

- Skewness

- Kurtosis

2. Shapiro-Wilk test (Normality test)

- Shapiro-Wilk test

- Normal probability plot (graph)

3. SD-SEM Conversion

4. One-sample t-test (Comparison of mean)

5. Paired sample t-test

6. Two-sample t-test (Comparison of means)

- F-test to compare 2 variances

- t-test(Student and Welch)

7. F-test for equality of 2 variances

8. Levene test for homogeneity of variance

(n >=3 groups)

9. One-way ANOVA

10. Multiple t-test (with Bonferroni correction)

11. Pearson correlation coefficient (Linear regression)

- Correlation coefficient

- Regression coefficient

- Test for correlation coefficient

- Regression line (graph)

12. Test for difference between one-sample correlation coefficient and compared value

13. Test for difference between two-sample correlation coefficients

### Nonparametric statistics ###

1. Median, Range and Quartiles

- Quartile deviation

- Boxplot (graph)

2. Mann-Whitney U test (= Wilcoxon rank sum test)

3. Median test

(Mood's Median test)

4. Kruskal-Wallis test and multiple comparisons (Bonferroni correction)

5. Sign test (paired sample)

6. Wilcoxon signed-rank sum test (paired 2 groups)

7. Binomial test I [** Exact method (