10.6a: One-Way ANOVA - Welch's ANOVA

Introducing the Welch adjustment on the One-Way ANOVA--the approach to use when you have sample groups with unequal variance. Video supports my INST 314 Statistics for Information Science at the University of Maryland iSchool

[CH-isvc]

Thank you for a great video! Can this be used for ordinal level data (i.e. 1-5 category options)?

[nurulhaffiza]

May i know what does "-" means in pairwise t.test in mental-mental