This document presents a detailed solution to a statistics assignment, addressing key concepts such as null and alternative hypotheses, Type I and Type II errors, z-scores, and the Central Limit Theorem. The assignment includes calculations for percentiles, probabilities, and hypothesis testing using t-tests and chi-square tests. The solution provides step-by-step explanations and screenshots from Excel to illustrate the computations. The assignment covers topics including distributions, scatter plots, correlation, and confidence levels. It also provides interpretations of statistical results, like p-values and the significance of observed data. The document is a valuable resource for students seeking assistance with their statistics coursework, particularly on hypothesis testing and statistical analysis.