Ambushed by a Lurking Variable
Abstract
In the formal study of design and analysis of experiments, it is often overlooked that a simple and straight-forward design can become complicated during analysis. Presented here is a specific case in which the design was readily apparent but where difficulties subsequently arose. Analysis, plagued by nonhomogeneity of variance and the suspicion of a lurking variable, is discussed. Answers to questions concerning the performance of a MLRS(Multiple Launcher Rocket System) bomblet were desired. The M42 is a small shaped-charge bomblet, designed to detonate on impact causing a jet, comprised primarily of copper, to penetrate the armor which it has impacted. Many bomblets are placed within a time-fused rocket, which is flown over the target area. A charge within the rocket is ignited, causing the skin of the rocket to peel away. This allows the undetonated bomblets to be sprayed over the target area; as the bomblets fall to the ground, a portion of them will impact the target.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1983
- Accession Number
- ADP001578
Entities
People
- Barry A. Bodt
- Jerry Thomas
Organizations
- Ballistic Research Laboratory