Mathematics, 13.01.2021 17:20 nicpinela1234
Suppose you want to investigate the proportion of women police officers. How large should a sample be if the margin of error is .05 for a 92% confidence interval
Answers: 3
, and a confidence level of 
, we have the following confidence interval of proportions.
.
, which is when the largest sample size would be needed.
, z is the value of Z that has a pvalue of 
, so 
. 
. So
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