assay: Yield from two processes

Description

A resin is one component in paint formulations. A chemist was working on a process for producing a resin needed in a paint formulation. Two competing processes were tested for the amount of resin the could produce.

Format

A data frame with 9 observations on the following 2 variables.

process

a factor with levels A and B

yield

a numeric vector

References

Peter R. Nelson, Marie Coffin and Karen A. F. Copeland (2003), Introductory Statistics for Engineering Experimentation, Elsevier. (Appendix A)

Examples

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2
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