The experimental units are what you apply the treatments to. In this experiment it would be the subjects or the customers in this situation since they will be treatment (either standing at their regular height or squatting to meet the eye level which could affect the amount of tip they give). An example of randomization can be numbering each table in the restaurant and picking them out of a hat and going to that table that you randomly chose and imposing the treatment on the customers there. Because tips depend on the income of the customers and how much they are willing to give for their meal. If not even income some people are willing to give despite how much money they make so their tips may higher than the wealthy crowd. Other factors the experimenters may not be able to control is the mood of the customers as well isn't it more likely if someone is enjoying their time to give more to the server despite the service the waiter.
The estimated cot to America for traffic crashes caused by underage drinkers is more than 10 billion dollars per year.
This cost came from various public property that has to be repaired and the hospitalization by the accident caused by the underage drinkers.
Answer: D)Job design.
Explanation:Job one of the four major psychological theory of motivation.It is defined as intentional of task to group or individuals in an organisation.
Job design has five major cores which are skill variety,task identity,task significance,autonomous and job feedback.
