Post hoc test | Fisher's LSD - explained

In this second video about post hoc tests, we will have a look at Fisher's LSD method.
- t-test vs Fisher's LSD (02:38)
- Why you should only use Fisher's LSD after a significant ANOVA (03:46)
- How to calculate Fisher's LSD (04:48)
- Why it is ok to use Fisher's LSD when we have three groups (06:30)
- Why it is NOT ok to use Fisher's LSD when we have more than three groups (09:18)

[@tedransom8087]

Thank you! Now I know why 3 groups (but not more) are OK for the LSD test!

[@tilestats]

Great!

[@raghu_yadav_yt]

Very helpful video. 👍👍👍

[@tilestats]

Thank you!

[@Ruichen8104]

Sir can you explain whats pooled variance of all groups

[@tilestats]

That is the weigthed average of the variance of all groups. Maybe this video about ANOVA may help
ua-cam.com/video/RrIZCg8FJHM/v-deo.html