I’m researching behavior of a certain group of people through a survey. I have access to the entire population which is 8000 and plan to email a survey, and collected data through Qualtrics, an online survey website. Is there a downside to surveying the entire population or should I do formal calculations given a 95% confidence interval and an anticipated response rate of say 20%, which will require me to send out the survey to about 2000. But, as all the data is electronic and therefore all the statistics will be done by a compute, isn’t it ideal to survey the entire population?