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Marrrta [24]
3 years ago
5

Will give barinliest. I need help Now.

Mathematics
1 answer:
Aloiza [94]3 years ago
4 0

Answer:

im pretty sure its N = w^2 + 2w

hope this helps if it does plz brainliest :)

Step-by-step explanation:

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Answer:

The sample size is  n = 3139    

Step-by-step explanation:

From the question we are told that

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From the question we are told the confidence level is  97.5% , hence the level of significance is    

      \alpha = (100 - 97.5% ) \%

=>   \alpha = 0.025

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

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Generally we will assume the sample proportion to be \^ p = 0.5

Generally the sample size is mathematically represented as  

    n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p )

=>  n = [\frac{2.241}{0.02} ]^2 *0.5 (1 - 0.5 )

=>  n = 3139    

   

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2 years ago
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