Description Format Details References Examples
Comparison of instruments to measure pH
A data frame with 11 observations on the following 2 variables.
phold
a numeric vector
phnew
a numeric vector
These data were collected to compare an old instrument to a new instrument. Eleven samples were tested with both instruments.
Peter R. Nelson, Marie Coffin and Karen A. F. Copeland (2003), Introductory Statistics for Engineering Experimentation, Elsevier. (Appendix A)
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