From a binary population dadt where = 0.64 a random sample of size 400 is select

Question

From a binary population dadt where = 0.64 a random sample of size 400 is selected. To build a middle interval around the population proportion such that 95% of all sample proportions deviated from the population proportion by no more than ±0.03 (3 percentage points), what is the minimum sample size to yield this interval? From a binary population dadt where = 0.64 a random sample of size 400 is selected. To build a middle interval around the population proportion such that 95% of all sample proportions deviated from the population proportion by no more than ±0.03 (3 percentage points), what is the minimum sample size to yield this interval?

Explanation / Answer

here margin of error E = 0.03 for95% CI crtiical Z          = 1.9600 estimated proportion=p= 0.6400 required sample size n =         p*(1-p)*(/E)2= 984.00

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