The data the Publix manager has collected is not rank data.
Rank data is a type of data where the observations can be ordered or ranked based on their magnitude or position. Examples of rank data include the finishing positions of runners in a race, the order of finish of teams in a tournament, or the ranking of products based on their sales performance.
The data the Publix manager has collected is not rank data because it consists of total value sales on Saturdays and Mondays, which are measured in dollars or some other continuous unit of measurement. The data is not ordered or ranked based on any particular attribute or characteristic, but rather represents a continuous variable. Therefore, the data is not rank data.