StatsCalc vs Art of Stat: Inference Usage & Stats
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
- -
For students and teachers of statistics.
The Art of Stat: Inference app provides:
- Inference for Proportions
+ one sample (z-test)
+ two independent samples (two sample z-test)
+ two dependent samples (McNemar)
- Inference for Means
+ one sample (t-test)
+ two independent samples (two-sample t-test)
+ two dependent samples (paired t-test)
+ several means (One-way ANOVA)
- Chi-Square Test
+ Goodness of Fit (one sample)
+ Independence/Homogeneity (contingency table)
- Data Editor
+ Create or edit datasets
Unlock all modules for a one-time small fee!
Entering your own data is easy:
If you just have a few observations (or if you have the summary statistics), simply type them in. For larger datasets, upload a CSV file of your raw data to a cloud account (such as iCloud or Google Drive) or email the file to yourself and save it on your device. Then, open the CSV file in the app and select the variables for your analysis. You can also simply copy & paste raw data from a spreadsheet app (such as Numbers on iOS or Google sheets).
To illustrate all methods, several example datasets are provided for each procedure.
The results are stunning:
The app provides relevant plots (side-by-side or stacked bar charts, boxplots, histograms) and computes and visualizes confidence intervals and P-values for testing hypotheses. All relevant information (such as standard errors, margin of errors, z- or t-scores and degrees of freedom) are clearly displayed and labeled. The P-value is visualized on a graph for the normal, t-, Chi-Squared or F-distribution.
Developed for both students and teachers as a handy tool for carrying out basic statistical inference and visualize results on the fly.
The app works in on- and offline mode (the app indicates that it is in offline mode with a large green banner), which makes it suitable for exams.
Easily share your results by taking screenshots.
- Apple App Store
- Free
- Education
Store Rank
- -
StatsCalc VS. 
Art of Stat: InferenceDecember 25, 2024