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.
<span>Low voter turnout is a feature of D. all elections across America.
People just don't want to vote - maybe they don't care, or they don't want to be the ones responsible for choosing the wrong president.
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Astronauts must exercise a minimum of 2 hours per day to reduce bone loss in space. Astronauts lose 1% to 2% if there bone minerals every month.
Answer:
The closest large city to the coordinate 40n, 120w, is Reno, the second largest city of the state of Nevada, and the largest city of Washoe County, with a population of around 250,000 people.
This coordinate falls over the state of Nevada, in a desert area, very close to the western border with the state of California.
