How large sample is so proportion not differ true proportion

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Reference no: EM13115672

A researcher at a major hospital wishes to estimate the proportion of the adult population of the United States that has high blood pressure. How large a sample is needed in order to be 98% confident that the sample proportion will not differ from the true proportion by more than 6%?

i) 10
ii) 378
iii) 755
iv) 267

Reference no: EM13115672

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