Figure 23

(a) shows a scatter diagram of a set of data. The residual plot is shown in Figure 23

(b) and the boxplot of the residuals is in Figure 23(c). Do the data have any outliers?

Approach We examine the residual plot and boxplot for outliers.

Transcribed Image Text:

Figure 23 Scatter Diagram of Sample Data Outlier 25 10 Response 5 15 3 4 5 6 7 8 9 10 11 12 Explanatory (a) Residuals 5 Residual Plot of Sample Data Outlier Boxplot of Residuals + 3 4 5 6 7 8 9 10 11 12 Explanatory (b) 0 5 10 Residuals (c) Outlier