STATS 13 Chapter Notes - Chapter 3.1: Colorectal Cancer, Alternative Hypothesis, Null Hypothesis
Document Summary
Estimation: one of the four pillars of inference. Tells how large the effect is, no by giving us a single number, but by giving us an interval of values. The goal of this chapter is to help understand the logic that statisticians use to compute an interval of plausible values for the effect we want to know about. Set of values called a confidence interval comes with a measure of reliability called the confidence level. In this section, we will see how we can use a confidence interval to estimate a long-run proportion (probability) or population proportion. Step 2: design a study and collect data: In 2011, there was a report of a study conducted in japan in which a dog was tested to see whether she could detect colorectal cancer. The study was designed so that the dog marine first smelled a bag that had been breathed into by a patient with colorectal cancer.
