Exam 2 Review MATH 3450

This document serves as a comprehensive study guide designed to master the practical application of inferential statistics, specifically focusing on estimation and hypothesis testing. Through a series of detailed examples, the text illustrates how to determine the appropriate statistical distribution—such as Z or T—based on sample size and available parameters to construct confidence intervals for both means and proportions. The second half of the review shifts toward formal testing procedures, requiring students to define null and alternative hypotheses, calculate test statistics, and evaluate p-values against established significance levels. Ultimately, the source functions as a structured roadmap for converting raw data into statistically significant conclusions across a variety of real-world research scenarios.