1. In an experiment 5 out 5 mutant mice developed cancer, and 1 out of 4 wild type mice developed cancer. Is there an association between this mutation and cancer development?
   1. List your null and alternatively hypothesis.
   2. Draw the two by two table, and compute the expected counts for each cell. Do you think the chi-square test or the corrected chi-square test is appropriate for this data analysis?
   3. Run R and draw your conclusion based on the chi-square test, report both results when Yate's continuity correction is considered or not.
   4. Run R and draw your conclusion based on the Fisher's exact test.
   5. Which conclusion (c) or (d) would you report finally and why?