SOLUTION: Find the minimum sample size that should be chosen to assure that the proportion estimate p will be within the required margin of error, .06. Use a 95% confidence interval and a po

Algebra ->  Probability-and-statistics -> SOLUTION: Find the minimum sample size that should be chosen to assure that the proportion estimate p will be within the required margin of error, .06. Use a 95% confidence interval and a po      Log On


   

Question 906200: Find the minimum sample size that should be chosen to assure that the proportion estimate p will be within the required margin of error, .06. Use a 95% confidence interval and a population proportion of .7. The critical value for a 95% confidence level is 1.96
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
ME = zsqrt(p(1-p)/n))
.06/1.96 = sqrt(p(1-p)/n))
n = (.7)(.3)/(.06/1.96)^2 = 224.0933 0r 225