Problem: Using these two independent variables (marital status, family number, and the dependent variable (use of smartphone).
What is the relationship between family number and smartphone use?
The null hypothesis would be that there is no relationship between family number and smartphone use, and the alternative hypothesis would be that there is a relationship between family number and smartphone use.
In regards to measures of variation, what specific considerations would you use to determine which test to run? Lastly, why are measures of variability important when interpreting your data?