Statistical Tools

This app presents the following features:
- Descriptive statistics;
- Descriptive statistics with frequency table;
- Random number generator using uniform, exponential or normal distribution;
- Statistical distributions: binomial, chi-squared, continouous uniforn, exponential, F, geometric, normal, Poisson and T-Student;
- Inverse statistical distributions (get quantiles given a probability): chi-squared, continuous uniform, expoential, F, normal and T-Student;
- Confidence interval: for a sample (T-test), for a mean (Z-test), for a proportion (Z-test) and for a variance (chi-squared test)
- Hypothesis test: chi-squared test for indenpendence and for goodness of fit, T-test for one or two samples, paired T-test, Z-test for one or two samples and Z-test for one or two proportions.