Yield of a chemical process

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Description

Yield of a chemical process

Format

A data frame with 20 observations on the following 3 variables.

temp

temperature of the slurry(degrees C)

pH

pH of the slurry

yield

yield of the process (tons)

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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str(yield)
xyplot(yield ~ temp|cut(pH, seq(6.25,6.85,len = 4), ordered = TRUE),
       yield, type = c("g","p","r"),
       xlab = "Temperature of the slurry (degrees C)",
       ylab = "Yield (tons)")

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