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Module 18: Inferential Statistics – Leaving Cert Higher Level Maths What can sample data really tell us about a population? This module explores how we move from data to decisions, a powerful set of tools known as inferential statistics. You’ll learn how to construct and interpret confidence intervals, carry out hypothesis testing, and understand the logic behind sampling and variability. These ideas aren’t just key for Paper 2, they’re also essential for anyone thinking of studying science, economics or data-related fields after school. Topics include: -Confidence intervals for population proportion -Hypothesis testing for population proportion -Sampling distribution of the mean: the Central Limit Theorem -Confidence intervals for population mean -Hypothesis testing for population mean This material is new for most students and can feel abstract at first, but together we’ll unpack it carefully and focus on clear explanations, guided examples, and plenty of exam-style questions. Join the live lessons and get your questions answered in real-time. I’ll help you develop a structured approach so you can tackle these problems with confidence and clarity. By the end of this module, you’ll not only understand what inferential statistics is all about, you’ll know how to answer the questions that come up every year.