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Testimonianze

(S.P.) "I have both SPME and Equation Solver and, to me, are some of the most useful software I have ever owned. I am an owner of a marketing consulting firm and work with two universities and their MBA programs (Quant. Analysis and Statistics courses for Marketing executives) and the software is easier to use and more intuitive than Excel. In addition, the support is industry leading. I have inquired many times for help and the step by step problem solving that was provided is a value add that exceeds the costs of the programs by many times. Support like that in today's world is unheard of. It is as though they wrote the software for me. I intend to purchase Accounting Finance Business Made Easy in the next few weeks."

Immagini

Statistics & Probability Made Easy 7.0

Lavora con

TI92 Plus | TI89 | TI89 Titanium | Voyage 200 |

Acquista ora

Descrizione

- Users have boosted their Statistics and Probability knowledge.
- 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 Non-Parametric Tests: Wilcoxon Sign Test, Rank Sum Test, Signed Rank Test, Kruskal Wallis Test, Friedman Test, etc.
- Step by Step F Test for 2 variances
- Step by Step ANOVA to test multiple means.
- Step by Step 2-way ANOVA.
- Step by Step Linear Regression.
- Read about how Confidence Intervals behave.
- Read about how 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: plot them, shade them where desired, compute probabilities, etc.
- Includes Binomial, Negative Binomial, Geometric, Normal, Student-t, Exponential, Poisson, Uniform, Sampling, 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
- Study Residuals and plot them
- Step by Step Derive the Coefficients for a Linear Regression Line, the Coefficient of Determination and the Correlation Coefficient.
- Read Theorems such as Central Limit Theorem, Random Variables, about Confidence Intervals and Tests, etc
- Also: Z-score Solver, Random Number Generator, etc
- 1 or 2 variable stats on mean, mode, median, standard deviation, variance, range, harmonic and geometric mean
- Plots: BoxPlots, x-y Plots, Scatter Plots, Histograms, Modified Box Plot
- View a simulation of the Law of Large Numbers, Read about Simpson Paradox.
- Compute Marginal and Conditional Probabilities.
- Read About Surveys, Samples, Population, Parameter, Statistics, Observational Studies vs Experiments.
- Random Variables: Compute Variance, Expected Value and Standard Deviation.
- Additional Modules on: Probability, Combinatorics, Percentages, Ratios, Proportions, Exponential and Logarithmic Functions, Exponential Function Solver, Expand and Condense Logarithms, Algebra, Equation Solver
- Multiple Regression Analysis Step by Step incl. Statistical Tests (optional table displays as in other software packages) , Confidence Intervals and Prediction Intervals.
- ANOVA and 2way ANOVA - Step by Step
- Control Charts
- Step by Step Power-, Beta- , Type 2 Error Analysis for Z Tests for Means and Proportions.
- Non-Parametric Tests for 1 sample: Sign Test, Rank Sum Test
- Friedman Test
- Normal Probability Plot with Quantiles
- Weibull, Gamma and Beta Distributions.
- Joint, Marginal and Conditional Probabilities for both Continuous and Discrete distributions.
- Find cdf given pdf and vice versa.
- Margin of Error computation
- NormInv() , Tinv() to find critical values given p-values.
- Ideal for quick review and homework check.
- Easy to use. Just plug in and the correct answer shows.

Documentazione

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