Mathematics, 29.10.2020 16:20 laytonlutz
in order to prepare a production plan for the next buisness quarter, a purchasing agent needs to estimate the percentage of businesses that plan to buy office furnature in the next 90 days. How many randomly selected companies does she have to srvey to create an estimate in which we are 98% confident with a margin of 3%
Answers: 3
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![n =[ \frac{ Z_{\frac{\alpha }{2} } }{E}] ^2 * [\^ p (1 - \^ p )]](/tpl/images/0851/2426/ebc4d.png)
![n =[ \frac{ 2.33}{0.03}] ^2 * [0.5 (1 - 0.5 )]](/tpl/images/0851/2426/e2683.png)
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