Mathematics, 27.03.2020 04:06 sophiat17
A recent poll of 500 residents in a large town found that only 36% were in favor of a proposed referendum to build a new high school. Find the margin of error for this poll if we want 95% confidence in our estimate of the percentage of residents in favor of this proposed referendum.
Answers: 3
, and a confidence level of 
, we have the following confidence interval of proportions.
.
, z is the value of Z that has a pvalue of 
, so 
.
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A recent poll of 500 residents in a large town found that only 36% were in favor of a proposed refer...
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