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n4Studies

Chetta Ngamjarus
n4Studies
Open in App Store ↗
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175 of 175 storefronts
Content in en-US
Age Rating
4+
Years
Developer
Chetta Ngamjarus
Language
EN
Size
8.4
MB

Information

Apple ID680516901
Bundle IDcom.statsinhand.n4Studies
SellerSeller
Min iOS16.0
Min macOS13.0
Device familiesiphone
Released2013-08-08
Copyright© Chetta Ngamjarus and Porjai Pattanittum
Privacy policyLink ↗

Preview 1 platform

iPhone 5 images

iPhone screenshot
iPhone screenshot
iPhone screenshot
iPhone screenshot
iPhone screenshot

What’s New Version 2.3

Fix some issues

Description

Ease to calculate the sample size with n4Studies. n4Studies makes it easy to calculate the sample size and the power of a study. It comes with ABSOLUTELY NO WARRANTY. However, It can help to learn and find the ways to calculate the sample size and power of the study in minutes. Key features: • Calculate the sample size for estimating an infinite population mean, finite population mean, infinite population proportion and finite population proportion • Calculate the sample size for comparing two population means and two population proportions • Calculate the sample size for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial • Calculate the power of a study for comparing two population means and two population proportions • Calculate the power of a study for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial • Calculate the power of a study for the Case-Control for study, Matched Case-Control study, Cohort study, Randomized Controlled Trial, Non-inferiority trial and Equivalence trial • You can send a result via Email to your colleague

Accessibility

ipadiphonemacrealityDevicetvoswatch

Version history 9 versions

Build 863884072v2.32024-02-20 14:00:59
Fix some issues
Build 858922701v2.22023-08-03 13:25:01
Version 2.2 - Add the probability calculations from odds ratio and risk ratio
Build 858138961v2.12023-06-29 11:24:32
Version 2.1 - Fix about image attachments Version 2.0 - Change all user interfaces
Build 811685094v2.02023-06-27 13:43:53
• Added a sample size for comparing more than two independent groups (three or four groups)
Build 757843635v1.4.12014-10-29 17:12:07
This update from Apple will improve the functionality of this app. No new features are included. • Changed the formulas for calculating the sample size of non-inferiority and superiority trial (two sample design) • Added the sample size and power calculations for non-inferiority and superiority in one-sample design
Build 689822647v1.3.02014-08-26 22:54:46
• Sample size formula(s) is/are shown on each sample size calculation and help screens • Added the text fields for design effect in sample size calculations for estimations. • Added the calculations for a test performance (sensitivity, specificity, positive and negative predictive value, positive and negative likelihood ratio, and etc.)
Build 592693033v1.2.02014-05-29 23:01:17
fixed bugs
Build 319522636v1.1.02014-01-24 21:34:04
• Add the results from a continuity correction • Add the calculation for Chi-squared test, OR. and RR. from 2 by 2 table
Build 15954218v1.0.02013-08-07 01:10:38
App price

Price history by region

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Availability 175 of 175 storefronts

RegionLanguagePriceRatingsAvgVersion
TH en-GBTHB 79285.02.3
CN zh-Hans-CNCNY 1535.02.3
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Change log 13 changes · PG

✎
releaseNotes updated
Fix some issues
✎
description updated
Ease to calculate the sample size with n4Studies. n4Studies makes it easy to calculate the sample size and the power of a study. It comes with ABSOLUTELY NO WA
✎
subtitle updated
n4Studies
✎
name updated
n4Studies
◆
Version 2.3 released
Fix some issues
◆
Version 2.2 released
Version 2.2 - Add the probability calculations from odds ratio and risk ratio
◆
Version 2.1 released
Version 2.1 - Fix about image attachments Version 2.0 - Change all user interfaces
◆
Version 2.0 released
• Added a sample size for comparing more than two independent groups (three or four groups)
◆
Version 1.4.1 released
This update from Apple will improve the functionality of this app. No new features are included. • Changed the formulas for calculating the sample size of non-inferiority and superiority trial (two sample design) • Added the sample size an
◆
Version 1.3.0 released
• Sample size formula(s) is/are shown on each sample size calculation and help screens • Added the text fields for design effect in sample size calculations for estimations. • Added the calculations for a test performance (sensitivity, sp
◆
Version 1.2.0 released
fixed bugs
◆
Version 1.1.0 released
• Add the results from a continuity correction • Add the calculation for Chi-squared test, OR. and RR. from 2 by 2 table
◆
Version 1.0.0 released
expanded screenshot