Stat 2500 Quiz 3: Hypothesis Testing Solutions, Columbia University

This document presents the solutions to Statistics Quiz 3, focusing on hypothesis testing. The quiz includes problems related to determining the null and alternative hypotheses, calculating the test statistic, defining the rejection rule, and drawing conclusions based on the data. The solutions provide step-by-step explanations for each question, including how to interpret the p-value and identify Type II errors. The quiz covers topics such as determining if the average weight of ten-month-old boys exceeds a certain value and determining if airline flights are on time. The solutions also include explanations for a right-tailed hypothesis test and how to calculate the p-value for such a test.