GreatWebTool
Login
Register
Confidence Interval Calculator

Confidence Interval Calculator

Confidence Level Calculator

Related Tools

Sales Tax Calculator
Sales Tax Calculator
Margin Calculator
Margin Calculator
Probability Calculator
Probability Calculator
Average Calculator
Average Calculator
CPM Calculator
CPM Calculator
GST Calculator
GST Calculator

Confidence Interval Calculator. Enter how many in the sample, the mean and standard deviation, choose a confidence level, and the calculation is done live.

How It Is Calculated

The Confidence Interval formula is

x̄ ± Z s√n

Where:

  • x̄ is the mean
  • Z is the Z-value from the table below
  • s is the standard deviation
  • n is the number of observations

Popular Tools

WebP to PNG
YouTube Thumbnail Downloader
Image Resizer
Image to Base64
Find Facebook ID
Password Generator

Recent Posts

How to Convert Octal to Decimal
How to Convert Octal to Decimal November 21, 2024
How to Convert Octal to Binary
How to Convert Octal to Binary November 21, 2024
How to Convert Decimal to HEX
How to Convert Decimal to HEX November 21, 2024
How to Convert Hex to Decimal
How to Convert Hex to Decimal November 21, 2024
How to Convert Binary to Decimal
How to Convert Binary to Decimal November 21, 2024