Introduction to Probability and Statistics, Jeremy Orloff, Jonathan Bloom, 2014 (Massachusetts Institute of Technology: MIT OpenCourseWare) - Provides lecture notes and materials from a renowned university course, offering a clear academic treatment of confidence intervals.
Statistics Done Wrong: The Woefully Complete Guide, Alex Reinhart, 2015 (No Starch Press) - Addresses common misconceptions in statistics, offering a valuable perspective on the correct interpretation of confidence intervals.