Final answer:
The bottom quartile refers to the lowest 25% of data in a study, and the maximum number of hours that it uses a personal computer for entertainment would be the highest figure within this grouping.
Step-by-step explanation:
To calculate the maximum number of hours per day that the bottom quartile of households uses a personal computer for entertainment, we would typically look at data from a study or a survey that details computer usage habits. The bottom quartile refers to the lowest 25% of data points in a sorted set.
If we had access to this dataset, we would identify the highest number of hours used by a household in this quartile. This number would represent the maximum amount of time those in the bottom quartile spend using a personal computer for entertainment purposes each day.