Confidence Intervals: Confidence Level, Sample Size, and Margin of Error

Initializing live version
Download to Desktop

Requires a Wolfram Notebook System

Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.

All confidence intervals studied in an introductory statistics course have in common the underlying relationships between the confidence level, sample size, and margin of error. Namely, for a fixed sample size the margin of error varies with the confidence level, and for a fixed confidence level the margin of error varies inversely with a sample size. Furthermore, the sample statistic being used to estimate a population parameter is always located at the midpoint of the confidence interval.

Contributed by: Eric Schulz (March 2011)
Open content licensed under CC BY-NC-SA


Snapshots


Details

detailSectionParagraph


Feedback (field required)
Email (field required) Name
Occupation Organization
Note: Your message & contact information may be shared with the author of any specific Demonstration for which you give feedback.
Send