ANOVA vs multiple linear regression? Why is ANOVA so …
ANOVA vs multiple linear regression? I understand that both of these methods seem to use the same statistical model. However under what circumstances should I use which method? What …
How to describe or visualize a multiple linear regression model
Then this simplified version can be visually shown as a simple regression as this: I'm confused on this in spite of going through appropriate material on this topic. Can someone please explain to …
Rules of thumb for minimum sample size for multiple regression
Would you suggest an alternative rule of thumb for minimum sample size for multiple regression? Alternatively, what alternative strategies would you suggest for determining minimum sample …
multiple regression - What to do if residuals are not normally ...
Jul 29, 2015 · It is a multiple regression indeed, thanks for adjusting. @ Dsaxton, could you clarify "residuals are never normally distributed"? Because I believe this is a assumption that has to …
When conducting multiple regression, when should you center …
Jun 5, 2012 · In some literature, I have read that a regression with multiple explanatory variables, if in different units, needed to be standardized. (Standardizing consists in subtracting the mean …
multiple regression - How to interpret Quadratic Terms - Cross …
May 9, 2016 · I'm answering a practice exam questions, and having trouble with one on quadratic terms. Could someone give me a quick summery of 1) why they are sometimes included? 2) …
Minimum number of observations for multiple linear regression
Jun 1, 2012 · 13 I am doing multiple linear regression. I have 21 observations and 5 variables. My aim is just finding the relation between variables Is my data set enough to do multiple …
understanding of p-value in multiple linear regression
Regarding the p-value of multiple linear regression analysis, the introduction from Minitab's website is shown below. The p-value for each term tests the null hypothesis that the coefficient …
multiple regression - Why is controlling for too many variables ...
Jan 17, 2022 · I am trying to understand the point of the second panel in the following xkcd comic: Specifically, how can one be misled by controlling too many confounding variables in one's …
multiple regression - Three IVs, one DV. What test to use? - Cross ...
Feb 25, 2016 · Multiple regression allows you to predict values of a continuous dependent variable (response variable) from 2 or more independent variables (predictors) of any type (i.e. …