Distribution tutorial

Learn how to describe the distribution of a variable, make inferences about the population parameters, and exclude observations from analysis.

Simon Newcomb measured the time required for light to travel from his laboratory on the Potomac River to a mirror at the base of the Washington Monument and back, a total distance of about 7400 meters. The data are used to estimate the speed of light. For more information see DASL Story: Estimating the Speed of Light

In this tutorial you will perform the following tasks:

1. Plotting the distribution of the data
   Create a histogram to see the distribution of the data.
2. Estimating the population mean
   Add an estimator to estimate the population mean.
3. Excluding outliers
   Exclude outliers, and recalculate the analysis, to see their effect.
4. Changing the histogram classes
   Edit the histogram classes to customize the analysis report ready for publication.