Problem 4 13 1 point Researchers are interested in testing whether a new medicine improves survival (in Which of the following is true about this study? years) for lung and pancreatic cancer. Survival is the DV and the other variables are It is a balanced design IVS. It is a 2 x 2 Factorial ANOVA The means and sample sizes (Ns) for their data are shown below. Follow the steps to determine the effectiveness of the medicine and whether it is different based on It tests two main effects and an interaction the type of cancer. All of the above Means: FACTOR B 14 1 point Medicine Placebo TOTAL What is the total N? Lung 1.2 0.7 0.95 O 100 FACTOR A Pancreatic 0.5 0.5 0.5 200 TOTAL 0.85 0.6 0.725 400 OO None of the above Sample Sizes: Medicine Placebo 15 1 point Lung 100 100 Which of the following mean comparisons is tested in the main effect of Factor B? 1.2 vs. 0.7 vs. 0.5 vs. 0.5 Pancreatic 100 100 OO 0.85 vs. 0.6 0.95 vs. 0.5 O 0.725 vs. 0 16 1 point If our conclusion is that: "The effectiveness of the medicine varied depending on the type of cancer, such that it only improved outcomes, compared to placebo, for lung cancer". Which of the following best describes the results? O There is a significant interaction O There are no significant effects There is a significant main effect of Factor B OO There is a significant main effect of Factor A