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.
He debated with Stephen Douglass, in what would eventually be called the "Lincoln-Douglass Debates"
In this milestone decision, the Supreme Court ruled that separating children in public schools on the basis of race was unconstitutional. ... On May 17, 1954, U.S. Supreme Court Justice Earl Warren delivered the unanimous ruling in the landmark civil rights case Brown v. Board of Education of Topeka, Kansas.
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Explanation: Mahatma Gandhi was the primary leader of India's independence movement and also the architect of a form of non-violent civil disobedience that would influence the world. Until Gandhi was assassinated in 1948, his life and teachings inspired activists including Martin Luther King Jr. and Nelson Mandela.
Civil disobedience is the refusal to comply with certain laws considered unjust, as a peaceful form of political protest.
Three examples: The salt march lead by Ghandi, poll tax non payment, extremadura campaign
