I love this lady, I was ready to eat my gun trying to solve this problem, MAN I HATE THESE CALCULATORS. So easy to understand and follow along, thank you!
@bunnybabybevytv6434
4 жыл бұрын
to the point and well spoken. thank you
@darthricius9525
4 жыл бұрын
you're a life saver! thanks
@CovetAmory
5 жыл бұрын
That was really cool; thank you! I really learned a lot!
@p90p90
2 жыл бұрын
If I could reach out and hug you! YOU are the BEST! thank you thank you!
@Leo-db6mi
Жыл бұрын
really greate video!
@briennawells5347
Жыл бұрын
How did you get alpha 0.05?? What does alpha stand for? My instructor doesnt use alpha.
@OpenIntroOrg
Жыл бұрын
Alpha is the symbol used for the "significance level", which is the value that the p-value is compared to for determining whether the data provide statistically significant results against the null hypothesis (H_0) in favor of the alternative hypothesis (H_A). More info can be found in one of our textbooks (free to download), such as: - Section 5.3 of OpenIntro Statistics (openintro.org/book/os) - Section 5.3 of Advanced High School Statistics (openintro.org/book/ahss)
@andrewsaputo1689
3 жыл бұрын
Why at least 30?
@OpenIntroOrg
3 жыл бұрын
This is better covered in the theory video regarding when the normal approximation is reasonable for most situations: kzitem.info/news/bejne/zal5yZOmjGWAZW0 For a much more detailed explanation, you can download one of our textbooks (the PDFs are free): www.openintro.org/book/ahss www.openintro.org/book/os
@gailsims9514
2 жыл бұрын
It is a requirement of normality. If the original population is not itself normally distributed, then the condition 'n is greater than 30' is used for justifying the use of normal distribution.
Пікірлер: 12