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Suppose you are trying to calculate the average amount of sales you derive from your customers.You want to be 93% sure of yourself when you
Suppose you are trying to calculate the average amount of sales you derive from your customers.You want to be 93% sure of yourself when you present you figures to the board of directors.You also want to be within $2,200 of the answer.Now suppose your calculations are telling you that the standard deviation will be $31,000.
How large must your sample size be to allow you to stay within your $1,500 allowable error range?Assume you cannot sample a partial piece of data, so round up.
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