How large a sample (to the nearest person) would be required


A survey of 94 students found that 23% were in favor of raising tution to build a new math building. The standard deviation of the sample proprortion is 5.3%. How large a sample (to the nearest person) would be required to reduce this standard deviation to 3.7%?

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Basic Statistics: How large a sample (to the nearest person) would be required
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