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The Brewer Who Secretly Revolutionized Statistics | Great Minds: William Gosset
When you have a study with a small sample size, how do you know that the results represent the broader population? Well, thanks to a brewer who needed to assess beer quality in the early 1900s, we now have a simple statistical test that...
Catalyst University
Wilcoxon Rank Sum Test: Theory and Tutorial in Excel
Wilcoxon Rank Sum Test: Theory and Tutorial in Excel
Catalyst University
Mann-Whitney U Test: Theory and Tutorial in Excel
Mann-Whitney U Test: Theory and Tutorial in Excel
Khan Academy
Khan Academy: Calculus: 2011 Calculus Ab Free Response #4C
Video shows how to find the points of inflection of an unusal function by looking at a graph of the first derivative of the function. [4:24]
Khan Academy
Khan Academy: Calculus: 2011 Calculus Ab Free Response #4B
Video shows how to determine the absolute maximum of a function over an interval by finding the value of the function at both ends of the interval and at any critical values. [13:15]
Khan Academy
Khan Academy: Statistics: Hypothesis Test for Difference of Means
Video demonstration of setting up a hypothesis test and calculating whether the difference of sample means of an experiment falls within a 5% significance level and using that to determine whether to accept or reject the null hypothesis....