Mathematics, 17.07.2020 22:01 fordenboer
We are interested in conducting a study to determine the percentage of voters of a state would vote for the incumbent governor. What is the minimum sample size needed to estimate the population proportion with a margin of error of .05 or less at 95% confidenc
Answers: 3
 
and 
. And the critical value would be given by:
  (a)  
and we are interested in order to find the value of n, if we solve n from equation (a) we got: Â 
 (b)  
. And replacing into equation (b) the values from part a we got:
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