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Author Question: A pollster wishes to estimate the number of left-handed scientists. How large a sample is needed ... (Read 87 times)

Frost2351

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on: Jul 24, 2018
A pollster wishes to estimate the number of left-handed scientists.
 
  How large a sample is needed in order to be 95 confident that the sample proportion will not differ from the true proportion by more than 6? A previous study indicates that the proportion of left-handed scientists is 9. A) 88 B) 62 C) 97 D) 27

Question 2

Given that a random variable x, the number of successes, follows a Poisson process, the probability of 2 or more successes in any sufficiently small subinterval is
 
  A) zero. B) one.
  C) any number between zero and one. D) none of these


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234sdffa

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Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

A


Frost2351

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Reply 2 on: Jul 24, 2018
Gracias!

ricroger

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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