Ingridr

This document includes practice problems and an explanation to questions which asked for one. The problems include sampling methods, specifically random sampling, systematic, sampling, stratified sampling, and cluster sampling. The second half has problems with observational study and experimental study.

Notes on finding the confidence interval for the mean when sigma is known and unknown with examples and formulas given. Explanation of Hypothesis Testing along with tables used to help solve problems and the formulas and steps used when using the traditional method or p-value method.