Patients with advanced cancers of the stomach, bronchus, colon, ovary, or breast were treated with ascorbate. The purpose of the study was to determine if the survival times differ with respect to the organ affected by the cancer. The variable of interest is survival time (in days).11 Here are parallel dotplots of the raw data.
An ANOVA was done after a square root transformation was applied to the raw data. There were two (related) reasons that the data were transformed. What were those two reasons?