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nasty-shy [4]
3 years ago
6

Whats the problem help me

Mathematics
1 answer:
rusak2 [61]3 years ago
3 0
5*23*2
5*23=115
115*2=230
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Answer: 0.49 ± 0.0237

Step-by-step explanation: A interval of a 99% confidence interval for the population proportion can be found by:

p_{hat} ± z.\sqrt{\frac{p_{hat}(1-p_{hat})}{n} }

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p_{hat} = \frac{1455}{2957}

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For a 99% confidence interval, z = 2.576:

0.49 ± 2.576.\sqrt{\frac{0.49(1-0.49)}{2957} }

0.49 ± 2.576.\sqrt{\frac{0.49*0.51}{2957} }

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For a <u>99% confidence interval</u>, the proportion will be between 0.4663 and 0.5137 or 0.49 ± 0.0237

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