ocw.mit.edu
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MIT OpenCourseWare is a free, open educational resource that provides lecture notes, assignments, and exams from MIT courses, including statistics and probability topics that cover hypothesis testing.
More resources on Hypothesis Testing
Statistics with Python
Coursera course: Statistics for Data Science with Python
Statistics for Business and Economics
Statistics for Business and Economics - A book resource
statisticshowto.com
Statistics How To is a practical statistics learning site that explains core concepts with clear, step-by-step tutorials and worked examples. It covers hypothesis testing (including p-values and test types) along with a wide range of other stats topics and handy calculators.
Introduction to Statistical Learning
Introduction to Statistical Learning - A book resource
Data Analysis and Statistical Inference
Increase your quantitative reasoning skills through a deeper understanding of probability and statistics, with the engaging "Fat Chance" approach that's made this course a favorite among learners worldwide.
stattrek.com
Stat Trek is an online statistics resource offering step-by-step tutorials and free calculators for topics like probability, distributions, hypothesis testing, confidence intervals, sample size, and power analysis.
