A given poll states 54th of fifth graders read at or above


A given poll states "54th% of fifth graders read at or above the fifth-grade-level." 

A.) if there is a stated margin of error of +/-2.5%, what is the confidence interval for this statistic?

B.) How would one estimate the size of the sample?

C.) Estimate the number of fifth graders in the sample?

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Mathematics: A given poll states 54th of fifth graders read at or above
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