Tables were randomly assigned to receive checks that either included or did not include a drawing of a smiley face. Data was collected from 44 tables in an effort to examine whether the added smiley face would cause more generous tipping.
TipExperiment
A data frame with 44 observations on the following 3 variables.
TableID
A number assigned to each table.
Tip
How much the tip was.
Condition
Which experimental condition the table was randomly assigned to.