Checking the constant variance condition
In addition to checking the normality of distributions of vocabulary scores across levels of social class, we need to check that the variances from each are roughly constant.
Diese Übung ist Teil des Kurses
Inference for Numerical Data in R
Anleitung zur Übung
- Group by social class.
- Summarize to calculate the standard deviations of vocabulary scores, storing in a column named
std_dev_wordsum. - Verify the constant variance condition.
Interaktive Übung
Vervollständige den Beispielcode, um diese Übung erfolgreich abzuschließen.
gss %>%
# Group by class
___ %>%
# Calculate the std dev of wordsum as std_dev_wordsum
____