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In a recent poll, 500 people were asked if they liked baseball, and 57% said they...

In a recent poll, 500 people were asked if they liked baseball, and 57% said they did. Find the margin of error of this poll, at the 95% confidence level. As in the reading, in your calculations: --Use z = 1.645 for a 90% confidence interval --Use z = 2 for a 95% confidence interval --Use z = 2.576 for a 99% confidence interval. Give your answer rounded to three decimal places.

Math   Statistics-And-Probability   
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Answer #1

given data are:-

sample size (n) = 500

sample proportion () = 57% = 0.57

z critical value for 95% confidence level is :-

[ mentioned in the problem ]

the margin of error of this poll,at the 95% confidence level be:-

*** if you have any doubt regarding the problem ,please write it in the comment box...if satisfied,please UPVOTE.

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