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.
Answer:
Um i believe it is A Due to lack of rainfall, a large percentage of water goes to irrigate farmland.
Explanation:
Because its the only one that is weather related or rather climate related.
If brainiest is earned its greatly appreciated.
A Classic Sun-Burn Is A Perfect Example Of A First-Degree Burn
Answer:
C
Explanation:
In the 20s the USA was considered isolationist, America for the Americans so when a influx of immigrants came in they faced harsh feelings from the born and bred Americans.
This can be confused with racism, if what happened in the 20s happened now it would be but there is a difference between not wanting someone in your country based on race and not wanting someone in your country based on the times ideals. We need to stop judging people from over a century ago like we would today, it was a different time, different ideals and different motives. I am not discounting the presents of racism obviously but pointing out the cultural influences at the time.
that was for free lol
