the data file: tumor.sav

Patients with tumors were used in this study. Researchers gave patients one of three drugs (either Cisplatin, Vinblastine, or Fluorouracil) and then the tumor size (diameter) was measured after treatment. The researchers were also interested if there was a different effect in men and women.

1. Perform a two-way ANOVA statistical test to evaluate the hypothesis, including a plot of the IVs. Make sure the plot is the most descriptive one possible.

2. Report your results in the following format, using complete sentences. State the type of test you used and what you were evaluating (research question/hypothesis).

State whether the main effects were significant, interpret what it means, and include your F, df (contrast, error), and p-values for each main effect. State whether the interaction effect was significant, interpret what it means, and include your F, df (contrast, error), and p-values for the interaction effect. State what the results mean in everyday language and what you can conclude (important).