What percentage points above and below sample proportion

Reference no: EM13116161

Preliminary estimates suggest that about 58% of students at a state university favor implementing an honor code. To obtain a 95% confidence interval for the proportion of all students at the university favoring the honor code, what is the minimum sample size needed if the total width of the confidence interval must be less than 5 percentage points i.e. the confidence interval should extend at most 2.5 percentage points above and below the sample proportion?

a.1498
b.Answer cannot be determined
c.375
d.264

Reference no: EM13116161

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