One-Sample t-Test for TI-83 & TI-84
HTML-код
- Опубликовано: 3 апр 2018
- Compute a one-sample t-test using a TI-83 or TI-84 graphing calculator.
TI-83 at amzn.to/1Qiwv3P (affiliate link)
TI-84 at amzn.to/1I0QO3P (affiliate link)
More free statistics resources, including our free intro statistics textbooks are at
www.openintro.org/book/stat
Video creator: Leah Dorazio ( / leahdorazio .
Closed captions: created by Frank Marfai at Phoenix College.
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!
to the point and well spoken. thank you
That was really cool; thank you! I really learned a lot!
you're a life saver! thanks
really greate video!
If I could reach out and hug you! YOU are the BEST! thank you thank you!
How did you get alpha 0.05?? What does alpha stand for? My instructor doesnt use alpha.
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)
who does the voice for these videos?
Why at least 30?
This is better covered in the theory video regarding when the normal approximation is reasonable for most situations:
ruclips.net/video/lsCc_pS3O28/видео.html
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
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.