Uploaded March 2022 | Updated September 2026, 2 hours ago
Todd meets with his supervisor at D2L (Brightspace) to discuss priorities going forward.
(I'll get back to stats videos soon. This one's mainly for fun, but inspired by a decade of frustration. In case it's not obvious, I play both parts.)
D2L (Brightspace) quizzes do not allow an instructor to change the answer to a numeric response (arithmetic) question and regrade quiz attempts. There's a related problem on multiple-select questions. This has cost me personally at least a hundred hours over the last decade. Any fix is ad-hoc and time consuming, and leads to confusing feedback for students, inferior learning outcomes, and wasted time for instructors that could be used to do something productive.
There are only so many possible explanations as to why D2L has not implemented this “feature”, despite pleas from instructors over the years. This video represents one possible explanation.
Todd meets with his supervisor at D2L (Brightspace) to discuss priorities going forward.
(I'll get back to stats videos soon. This one's mainly for fun, but inspired by a decade of frustration. In case it's not obvious, I play both parts.)
D2L (Brightspace) quizzes do not allow an instructor to change the answer to a numeric response (arithmetic) question and regrade quiz attempts. There's a related problem on multiple-select questions. This has cost me personally at least a hundred hours over the last decade. Any fix is ad-hoc and time consuming, and leads to confusing feedback for students, inferior learning outcomes, and wasted time for instructors that could be used to do something productive.
There are only so many possible explanations as to why D2L has not implemented this “feature”, despite pleas from instructors over the years. This video represents one possible explanation.




![An Introduction to Hypothesis Testing
A first look at hypothesis testing.
For those that use R, below is the R code to find the binomial probability given in this video.
To find the probability that X takes on a value that is at least 28, where X has a binomial distribution with parameters n = 100 and p = 1/4:
1-pbinom(27,100,1/4)
[1] 0.2776195
To find the probability that X takes on a value that is at least 44, where X has a binomial distribution with parameters n = 100 and p = 1/4:
1-pbinom(43,100,1/4)
[1] 2.700295e-05 An Introduction to Hypothesis Testing](https://i.ytimg.com/vi/tTeMYuS87oU/mqdefault.jpg)





