Sorting out the rubbish – Study Design

• Introduction
• Background
• Study Design
• Data Collection
• Analysis
• Data

Variables

• Garbage company
• Net weight of garbage

Statistician’s description of the design

The data set is simply a set of consecutive observations over time on a number of garbage trucks owned by 40 companies.

Statistician’s description of the problem

The problem is to determine if there are any characteristics of the observations that suggest that there is anything wrong with the weighbridge or the weighing procedures.