Solution-Confidence interval for population proportion

Confidence interval for population proportion

Reference no: EM132177448

CI = p` + z*sqrt(pq/n)

at 95% z=1.96 hence

CI =0.71 + 1.96*sqrt(0.71*0.29/357)

=(0.6629 , 0.7571)

How large a sample must be taken to construct a 95% confidence interval for this population proportion with a margin of error of no more than + -4% points

Reference no: EM132177448

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Confidence interval for population proportion

Reference no: EM132177448

Reference no: EM132177448

Questions Cloud

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Basic Statistics Questions & Answers

Statistics-probability assignment

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Determine the value of k

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Caselet on mcdonald’s vs. burger king - waiting time

Generate descriptive statistics

Sampling variability and standard error

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Assured A++ Grade

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