StatsCalc vs Art of Stat: Explore Data 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
- -
Statistics calculator for teachers and students of statistics.
The Art of Stat: Explore Data app includes statistical methods for exploring categorical and quantitative data. Obtain summary statistics, contingency tables or correlation coefficients and generate bar- and pie charts, histograms, boxplots (including side-by-side boxplots), dotplots or interactive scatterplots that let you color dots by a third variable. Several example datasets are preloaded for you to explore (including instructions on the statistical analysis), but you can also enter your own data or import a CSV file.
The following methods are implemented:
- Analyzing One Categorical Variable
- Comparing Groups on a Categorical Variable
- Analyzing the Relationship Between Two Categorical Variables
- Analyzing One Quantitative Variable
- Comparing Groups on a Quantitative Variable
- Analyzing the Relationship Between Two Quantitative Variables (Linear Regression)
The app provides:
- Frequency tables and bar and pie charts for exploring one categorical variable.
- Contingency tables, conditional proportions and side-by-side or stacked bar charts for exploring a categorical variable across several groups or the association between two categorical variables.
- Mean, standard deviation and the 5-number summary together with histograms, boxplots and dotplots to explore a quantitative variable.
- Side-by-side boxplots, stacked histograms or density plots for comparing a quantitative variable across several groups.
- Interactive scatterplots with regression lines to analyze the relationship between two quantitative variables. Correlation statistics and linear regression parameters and predictions. Plots of raw and studentized residuals.
The app comes with several example datasets preloaded, which you can directly open in the app to explore the app's various features. You can also type in your own data or upload your own CSV file (which any spreadsheet program can create) and select variables from it. Finally the app includes a basic spreadsheet program called Data Editor to create and edit data.
You can also copy & paste data from a spreadsheet app such as Google Sheets, Excel or Apple’s Numbers app. Several sample datasets are provided.
- Apple App Store
- Free
- Education
Store Rank
- -
StatsCalc VS. 
Art of Stat: Explore DataDecember 25, 2024