Tài liệu tham khảo

Crawley, Michael J. 2015. Statistics - an Introduction in r (2nd Edition). 2nd ed. Wiley. https://studyr.netlify.app/ref/crawley_2015_statistics_an_introduction_in_r_2nd_edition.pdf#page=77.

Lam, Nguyen Van. n.d. “Khoảng Tin Cậy (Confidence Interval) Là Gì?” https://youtu.be/TqOeMYtOc1w.

Starmer, Josh. n.d. “Confidence Intervals, Clearly Explained!!!” https://youtu.be/TqOeMYtOc1w.