Perform Non-Parametric Tests such Wilcoxon, Kruskal or Signed Rank on the TI-nspire

Non Parametric Statistical Tests were just added to Statistics Made Easy package for the TiNspire at .

In particular, you can now easily perform

*Sign Tests

*Wilcoxon Signed Ranked Tests

*Kruskal Wallis Test

*Chi Square Tests

Just enter the given data and watch step by step how the p-value is computed so that you can draw your correct conclusions.

What is particular nice about using these tests , like for the parametric tests too, once you change 1 or 2 data points you can immediately see how that change influences the final conclusion. So, no reentry of all the data is needed, just a little tweak.


Step by Step Statistics app for the Ti-Nspire CX available now


Watch this Youtube Video for an overview and examples at

Shows Step by Step solutions for most Statistics and Probability topics.

  • Step by Step Confidence Intervals for mean, proportion, 2 means, 2 proportions, variance, slope, etc.
  • Compute Sample Sizes for Confidence Intervals.
  • Step by Step Tests of Significance (Z-Tests, T-Tests, ChiSquare Goodness of Fit and Independence tests, 2-sample T tests, 2 proportion Z tests, for Variance, etc)
  • Step by Step Regression.
  • Read about how Confidence Intervals behave.
  • Read about Significant Tests: Type 1 Error, Type 2 Error, Power of a Test.
  • Much easier handling than other Statistics packages: Choose to enter Data or Statistic values. Select Significant/Confidence Levels easily.
  • Distributions: compute probabilities, etc.
  • Includes Binomial, Geometric, Normal, Student-t, Exponential, Poisson, Multinomial, Hypergeometric, F-, Chi-Square and more Distributions.
  • Probability Checker for independent events, disjoint events. Also solves P(A or B)=P(A)+P(B)-P(A and B) for the unknown.
  • Regressions: Linear , Quadratic, Cubic, Quartic, Sinusoidal, Logarithmic, Exponential, Power, MedMed
  • Step by Step Derive the Coefficients for a Linear Regression Line, the Coefficient of Determination and the Correlation Coefficient.
  • Also: Z-score Solver, Random Number Generator, etc
  • 1 or 2 variable stats on mean, mode, median, standard deviation, variance, range

Step by Step Statistics App now available for the TI-Nspire CX CAS

Hi TI-Nspire users: Step by Step Statistics problem solving involving

-Statistical Analysis

-Mean, Mode, Median, Std Deviation, Variance

-Linear , Quadratic and 6 other Regressions

-Confidence Intervals

-Statistical Tests

-Normal Distribution, Binomial Distribution and 6 other Distributions

-Conditional Probability

and much more..

Free trials.

Download at :