Art of Stat: Inference 4+
Confidence Intervals and Tests
Bernhard Klingenberg
Designed for iPad
-
- Free
- Offers In-App Purchases
Screenshots
Description
Statistical calculator for inference (confidence intervals and hypothesis tests) about proportions and means.
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.
What’s New
Version 2.0.0
Methods for Two Dependent Samples:
+ Paired t-test for comparing two means
+ Mc Nemar's test for comparing two proportions
Ratings and Reviews
Great for my intro stats class
This covers all the methods we learn in Stat 101, and is so easy. Our teacher even uses it in class to demonstrate a new analysis, and we can follow along on our phones. No more tables to look up to find P values, or what test statistic to use. Incredible easy!
Great
Great app
Helps my stats students. Easy to use. Fun as well. One of the best things that the net as produced.
Great Basic app
I wish the one mean app would round at least one decimal instead of rounding the margin of error to a whole number. Students can’t use the app on their homework.
Developer Response ,
Thank you for your review. I'm trying to address this in the next version out very soon, but even now you may use the "Adjust Number of Digits" switch right below the Descriptive Statistics table on the first tab ("Enter Data"). With it, you should be able to set the number of digits shown for the margin of error for the confidence interval. If this doesn't work, can you email the specific data you use to support@artofstat.com. Thank you!
App Privacy
The developer, Bernhard Klingenberg, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Information
- Seller
- Bernhard Klingenberg
- Size
- 32.6 MB
- Category
- Education
- Compatibility
-
- iPhone
- Requires iOS 13.4 or later.
- iPad
- Requires iPadOS 13.4 or later.
- iPod touch
- Requires iOS 13.4 or later.
- Mac
- Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- Apple Vision
- Requires visionOS 1.0 or later.
- Languages
-
English
- Age Rating
- 4+
- Copyright
- © 2024 Bernhard Klingenberg
- Price
- Free
- In-App Purchases
-
- Unlock All Apps $2.99
- Inference for a Mean $0.99
- Inference for Two Proportions $0.99
- Inference for Two Means $0.99
- Chi-Square Test (Independence) $0.99
- Chi-Square Test (GoF) $0.99
- Two Quantitative Variables $0.99
- ANOVA: Comparing Means $0.99
- Errors & Power $0.99
- Coverage for Intervals $0.99