Congressional candidate and true proportion

Assignment Help Basic Statistics

Reference no: EM1320009

A pollster for a congressional candidate would like to determine the proportion of the voting population who prefers this candidate at this time over the competition. He would like to estimate with .05 of the true proportion with a confidence level of 90%. What is the sample size needed?

a) 171

b) 271

c) 298

Reference no: EM1320009

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