How To's > Work with Statistical Objects > Estimate Parameters and Compute Confidence Intervals > Estimate the Population Mean from Raw Data

Estimate the Population Mean from Raw Data

Use this estimate if you have a sample of numeric data for which you want an estimate of and confidence interval for the mean.

1. Create a new estimate by dragging one from the shelf or choosing Object | New | Interval Estimate.

2. From the pop-up menu in the estimate's upper-right corner, choose Estimate Mean.

3. Drop the attribute of interest into the prompt in the top section of the estimate, where it says Attribute (numeric): <unassigned>.

Fathom uses the attribute's name and values to fill in the estimate at the default confidence level of 95%.

· Change the confidence level by double-clicking the 95, typing a new value, and pressing Return.

See also
Use Sliders to Vary Summary Information in a Statistical Object
Shorten the Output in Statistical Inference Objects

Key Curriculum Press/Key College Publishing
www.keypress.com/fathom