Chapter 2.8, Problem 21E

In Exercises 2.20–2.22, identify whether the design is a completely randomized design, randomized complete block design, or Latin square design. If there is a factorial structure for the treatments, specify whether it has a two-factor or three-factor structure. If the measurement units are different from the experimental units, identify both.

2.21 A company is planning on purchasing a software program to manage its inventory. Five vendors submit bids on supplying the inventory control software. In order to evaluate the effectiveness of the software, the company’s personnel decide to evaluate the software by running each of the five software packages at each of the company’s 10 warehouses. The number of errors produced by each of the software packages is recorded at each of the warehouses.