Paired comparisons, 436–440
Parallel fits, 714–715
Parameters
defined, 205
ranges for, 363–368
Pareto charts, defined, 29
Partial F-tests, 812
Partial slopes, 637–638
Parts and labor, pricing, 807–813
Path diagrams, 638–639, 654–655
Patterns, defined, 3–4
Percentages
in contingency tables, 82–83
in frequency tables, 28
in histograms, 57
logarithms and, 150, 549
Percentiles
main discussion, 52–53
in normal distributions, 280–282
Pharmaceutical advertising, 251. See also Counts
Pharmacies, profits of, 682–687
Phones. See Smartphones
Pie charts, 31–33
Pilot samples, 377
Pitfalls
ANOVA, 755
association
between categorical variables, 97
between numerical variables, 127
between random variables, 242
categorical data, 40
chi-squared, 472 ...