ECON 010 Chapter Notes - Chapter 7: Simple Random Sample, United States Census Bureau, Statistical Inference
Document Summary
Every 10 years, the united states census bureau is tasked with counting everyone in the country. Back in 2010, they required 635,000 to accomplish this task. Recently many statisticians have argued that instead of trying to count each individual, census takers should conduct in-depth surveys of a smaller number of areas and use that information to arrive at an estimate of the entire u. s. population. The proposal is an example of statistical inference. Definition: statistical inference is the process of reaching conclusions about a population based on a sample (subset) of that population. The perhaps the obvious reason is that sampling reduces the time, cost and effort of doing a full census (100% inspection). There are other reasons why sampling might be preferred. There are situations where the there is destructive testing a situation where the item is destroyed in the process of measurement. For example, suppose that sony wanted to determined the average life of its latest television model.
