T-test for difference of two means in paired samples - statistics help including Excel examples
When we test for the difference of two means, it makes a difference whether the samples are paired or independent. In this video Dr Nic undertakes a hypothesis test on the difference of two means in paired samples.
0:00 Introduction
0:40 Before and after case
0:55 Boxplots
1:18 Defining d
2:00 Hypotheses
2:26 Steps of hypothesis testing
3:09 Using Excel to analyse
3:51 Interpreting output
4:20 Making the decision
4:37 What p tells us
5:10 Cat food example
5:48 Two-tailed
6:22 Conclusion
6:45 Credits
To find out more about the difference between paired samples and independent samples, and for a description of the two examples, see • Paired samples and independent sample...
To find out how to test for independent samples see:
Video: Hypothesis test: t-test for difference of two means, independent samples • Hypothesis testing: step-by-step, p-v...
Video: Two means t-test in Excel • Two means t-test in Excel - Statistic...
See https://creativemaths.net/videos/ for all of Dr Nic's videos organised by topic.
Смотрите видео T-test for difference of two means in paired samples - statistics help including Excel examples онлайн без регистрации, длительностью часов минут секунд в хорошем качестве. Это видео добавил пользователь Dr Nic's Maths and Stats 16 Август 2020, не забудьте поделиться им ссылкой с друзьями и знакомыми, на нашем сайте его посмотрели 26,488 раз и оно понравилось 379 людям.