1. As a potential worldwide pandemic, avian influenza H5N1 (commonly called the bird flu) poses a serious health risk. As of January 24, 2014, there have been 694 human cases of this virus in the world. Of these cases, 402 have resulted in death. (Source: www.who.int/csr/disease/avian_influenza/en/)

Consider the outcomes of these cases as a random sample of all possible outcomes.

a) Find a point estimate for the proportion of people who would die if infected with the bird flu.

b) Verify that the requirements for constructing a confidence interval about