Statistics for Business: Decision Making and Analysis, 3rd Edition

O

• Observations, defined, 12

• One-sided hypotheses, defined, 392–393

• One-way ANOVA, 742–743, 813

• Online retailers, 453. See also Chi-squared

• Optimal pricing, 543–545, 546–548, 550

• Orange juice pricing, 543–545

• Ordinal variables

  • in bar charts, 30

  • defined, 13–14

  • median of, 38–39

• Outcome, 158

• Outliers

  • automated modeling and, 816–817

  • in boxplots, 60–61

  • defined, 58

  • in histograms, 58

  • leveraged, 607–610

  • normality and, 283, 287

  • in regression, 607–611

  • in scatterplots, 113

  • variables measured in dollars and, 61

• Over-fitting, 819