An electronics company wants to compare the quality of their cell phones to the cell phones to three competitors

Statistics Mar 29, 2023

An electronics company wants to compare the quality of their cell phones to the cell phones to three competitors. They sample 10 phones from each company and count the number of defects for each phone. If ANOVA was used to compare the average number of defects, then the source of variation for the treatment portion of the ANOVA would have how many degrees of freedom?