Mathematics, 02.11.2020 17:10 LuckyCharms988
Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,000 and $45,000 with a population standard deviation of $3750. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. How large a sample should be taken if the desired margin of error is $200?
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![n = [\frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ] ^2](/tpl/images/0860/2591/a50a9.png)
![n = [1.96 * 3750 }{200} ] ^2](/tpl/images/0860/2591/0bac9.png)
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