Basic Analysis and Graphing - SAS

130 Performing Oneway Analysis Chapter 5
Example of Oneway Analysis
Figure 5.3 Example of the Means/Anova Option
Note the following observations:
• Mean diamonds representing confidence intervals appear.
– The line near the center of each diamond represents the group mean. At a glance, you can see that
the mean for each drug looks significantly different.
– The vertical span of each diamond represents the 95% confidence interval for the mean of each
group.
See “Mean Diamonds and X-Axis Proportional” on page 143.
• The Summary of Fit table provides overall summary information about the analysis.
• The Analysis of Variance report shows the standard ANOVA information. You notice that the Prob > F
(the p-value) is 0.0053, which supports your visual conclusion that there are significant differences
between the drugs.
• The Means for Oneway Anova report shows the mean, sample size, and standard error for each level of
the categorical factor.