Company Experiment

A manufacturer wants to measure the `quality' of a product by using the ratio of the maximum to minimum diameter of a particular hole punched in plastic (the ratio should ideally be 1.000+/-0.001). Rather than record this value, which is costly to measure, each product line is given a visual score between 0 and 100 as to its quality.

The parts in question are of several types (A,B,C) and are manufactured using steel from several companies (1-5). In addition, the hole punch may occur at one of two sites in the manufacturing plant. Four replicates were collected for each combination of type, company and site in a completely randomized design for a total of 120 measurements.

Data & Setup

company.dat
steel site type reps score

SAS & S-Plus Data Analysis

company.s
company.sas
company.prt
some initial ideas on analysis

Last modified: Tue Feb 17 09:00:50 1998 by Brian Yandell (yandell@stat.wisc.edu)