Problem
Calculating Relative Risk and Type I/II Errors
• There were 1,000 people in a town that was devastated by a hurricane and suspected of high rates of COVID-19. Half of the people (500) became sick within 2 weeks. Of the half that got sick, 468 were living where the local water was contaminated. Sixty-three of those who did not get sick lived in the same area with the contaminated water. Calculate the relative risk (RR) of being exposed to living with contaminated water.
• How can a Type I error be committed?
• How can a Type II error be committed?