Question: When taking a random sample from a very large population, how does the standard error of the mean change when a. The sample size is

When taking a random sample from a very large population, how does the standard error of the mean change when
a. The sample size is increased from 100 to 1,600?
b. The sample size is decreased from 300 to 150?
c. The sample size is multiplied by 4?

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