Use the normal approximation to the Poisson distribution to estimate 95% confidence limits around the true mean number of mutations per million base pairs and compare with Section 8.2, Exercise 43.
Mutations are counted in a large section of the genome. This count finds 14 mutations in one set of 1 million base pairs. Then 30 different sets of 1 million base pairs are measured, and the average number of mutations per million is found to be 13.5.