CIShaper
  • Explore Interval
  • About

What is CIShaper?

CIShaper is an interactive tool designed to help you explore the concepts of confidence intervals. You can use this app to visualize confidence intervals for different sample sizes, means, and standard deviations. It also allows you to simulate multiple samples and observe how many confidence intervals contain the true population mean.

Features:

  • Adjust parameters such as the population mean, population standard deviation, sample size, and confidence level.
  • Simulate multiple confidence intervals and compare them visually.
  • Calculate confidence intervals when the population standard deviation is known and unknown.
  • Explore the change in the margin of error across intervals.

Authors

This app has been developed by Thisaakhya Jayakody and Paul Fijn in the School of Mathematics and Statistics at the University of Melbourne using the R Shiny framework with the aim of making the understanding of statistical concepts more interactive and engaging.

Acknowledgment

This app was inspired by StatPlay Version 1.0 Release 23 (1997) by G.Cumming, S.Finch, J.Les, R.Maillardet, N.Thomason and J.Zhang.