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Your company wants to conduct a salary survey for the position of Accounting Assistant II. The estimated salary range is $4,500, the margin of error should be $100 and the desired level of confidence is 95%. What is the optimal sample size for this salary survey?

2 answers

You shouldn't be trying to get answers to the final here!
n = [(z*sigma)/E]² = [1.96*$4,500)/$100]² = ($77,792,400 / $10,000) = 7,779.24 = 7,780
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