Week2 : "What is a hypothesis & How do we test it?" video Speed in hypothesis is written incorrectly as '95 mph' instead of '90 mph'

In week 2 video, “What is a hypothesis & How do we test it?”, it is written at 4:30 time that, “I reject the hypothesis that the mean speed of Bumrah is greater than 90 mph because there is a 25% chance that I might get sample in which the mean speed is greater than 90 mph even if the true mean is less than 95 mph.”

I think, it should be 90 mph instead of 95 mph, towards end of sentence. Instructors also mentions same.

Correct would be: “I reject the hypothesis that the mean speed of Bumrah is greater than 90 mph because there is a 25% chance that I might get sample in which the mean speed is greater than 90 mph even if the true mean is less than 90 mph.”

Please let me know.

4 Likes

Yes, even I think it is a typo error.

2 Likes

Yes, even the instructor mentioned it as 90 mph and not 95 mph.