Stats tester mini

By using Stats tester mini, you can perform statistics tests and obtain graphs by an easy operation. This app has the following features. 1. Each statistics method has useful [Help], [Example], [Share] and [Graph] buttons. 2. As one input window accepts one group data (max = 100), it is easy to edit the entered data (addition, deletion or modification). 3. Entered data to each statistics test are memorized until the next use. This function is a feature of this app and it is very convenient. Statistic methods 1. Mean & SD, etc 1) Arithmetic, Geometric and Harmonic means 2) Standard Deviation (2) 3) Standard Error of the mean (sem) 4) 95 and 99% Confidence interval (CI) 5) Sum 6) Sum of Square 7) Variance, Unbiased variance 8) Coefficient of variation (%CV) 9) Skewness (2) 10) Kurtosis (2) 11) Graph 2. Two-sample t-test (Student & Welch) 1) Mean 2) Standard deviation (2) 3) Standard error of the mean (sem) 4) F-test to compare 2 variances --> p value 5) Student t-test --> p value 6) Welch's procedure --> p value 7) Graph 3. Paired sample t-test 1) Mean 2) Standard error of the mean (sem) 3) Paired t-test --> p value 4) Graph 4. One-sample t-test 1) Mean 2) Standard deviation (2) 3) Standard error of the mean (sem) 4) One-sample t-test --> p value 5) Confidence interval (CI) 6) Graph 5. One-way ANOVA (Analysis of variance, 4 groups) 1) Mean 2) Standard error of the mean (sem) 3) Analysis of variance --> p value 4) ANOVA table 5) Graph 6. Correlation & Regression 1) Correlation coefficient 2) Regression coefficient (Linear Regression) 3) Coefficient of determination 4) Test for correlation coefficient --> p value 5) Graph 7. Shapiro-Wilk test (Normality test) 1) Krutosis α4 (α4=3 --> normal distribution) 2) Shapiro-Wilk test --> p value 3) Normal probability plot graph Acknowledgment The iOs Chart library distributed under the Apache 2.0 license was utilized to make graphs. https://github.com/danielgindi/Charts http://www.apache.org/licenses/LICENSE-2.0.html