Art of Stat: Resampling vs StatsCalc Usage & Stats
Modern statistical calculator for teachers and students of statistics.
The Art of Stat: Resampling app lets you find bootstrap confidence intervals and permutation P-values. The app illustrates the procedures interactively so you can understand how they work. Several example datasets are preloaded for you to explore, but you can also enter your own data or import a CSV file.
The following resampling methods are implemented:
- Bootstrap Confidence Interval for a population mean, median, or standard deviation.
- Bootstrap Confidence Interval for a population proportion or the population odds.
- Bootstrap Confidence Interval for a population correlation (Pearson and Spearman) or the population slope of a regression model.
- Bootstrap Confidence Interval for the difference of two population means or medians.
- Permutation Test for a population mean or median.
- Permutation Test for the difference of two population means or medians.
And coming soon:
- Permutation Test for the independence of two categorical variables (Permutation Chi-Squared Test)
Easily find the bootstrap confidence interval based on the percentile and other methods. For inference about the population mean, compare results to traditional methods based on the Student-t distribution.
Each procedure has three screens:
1) Enter Data, where you provide the data and obtain descriptive statistics and corresponding graphs (Histogram, Boxplot, Bar Chart).
2) Simulate Distribution, where you generate the sampling distribution (or the null distribution for permutation tests) of a chosen statistic.
3) Confidence Interval/Permutation P-value, where you use the generated distribution to obtain the confidence interval or the permutation P-value, along with lots of supporting information and comparison to classical, central-limit-based inference.
The app also has a Data Editor spreadsheet for you to enter or edit (and save) your own data.
- Apple App Store
- Free
- Education
Store Rank
- -
Short Description:
Computes descriptive statistics of quantitative variables.
Performs statistical tests and computes confidence intervals in one, two and multiple-sample situations.
Provides regression analysis using linear, exponential and power-law models.
Computes probabilities and quantiles for standard statistical distributions.
Provides statistics features usually found on hand-held calculators.
Accuracy of numerical results tested against Wolfram Mathematica.
Features:
Data Entry:
Easy (list-based) entry of quantitative and categorical data, and two-way tables.
Voice-based data entry (Siri) is possible.
One-Sample Methods:
Z-Test for the Mean.
Z-Interval for the Mean.
T-Test for the Mean.
T-Interval for the Mean.
Wilcoxon Signed Rank Test.
Chi-squared Test for the Standard Deviation.
Chi-squared Interval for the Standard Deviation.
One-Proportion Z-Test.
One-Proportion Z-Interval.
Chi-squared Test for Goodness-of-Fit.
Two-Sample Methods:
Z-Test for Two Means.
Z-Interval for Two Means.
T-Test for for Two Means (Assuming Equal Variances).
T-Interval for Two Means (Assuming Equal Variances).
T-Test for for Two Means (Assuming Unequal Variances).
T-Interval for Two Means (Assuming Unequal Variances).
F-Test for for Two Standard Deviations.
F-Interval for Two Standard Deviations.
Two-Proportion Z-Test.
Two-Proportion Z-Interval.
McNemar Test.
Multiple Sample Methods:
One-way ANOVA.
Chi-squared Test for Independence.
Cochran's Q-Test
Correlation and Regression:
Two-Variable Descriptive Statistics.
T-Test for Correlation.
Linear Model Fit and Regression Analysis.
Exponential Model Fit and Regression Analysis.
Power-Law Model Fit and Regression Analysis.
Spearman Rank Correlation.
Probability Theory:
Distribution Calculator: Contains methods for computing probabilities and quantiles for standard statistical distributions.
Computes Mean, Variance and Standard Deviation for a Discrete Random Variable.
- Apple App Store
- Free
- Education
Store Rank
- -
Art of Stat: Resampling VS. 
StatsCalcDecember 10, 2024