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For a population with a standard deviation of 20, how large a sample is necessary to have a standard error that is: A. Less than or equal to 5 points? B. Less than or equal to 2 points? C. Less than or equal to 1 point?

/in /by

For a population with a standard deviation of 20, how large a sample is necessary to have a standard error that

is:

A. Less than or equal to 5 points?

B. Less than or equal to 2 points?

C. Less than or equal to 1 point?

 
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