Christopher
New member
information from past da? a)What total size sample would be necessary if we wanted to estimate the true proportion to within ±0.08 using 90% confidence?
b)What total size sample would be necessary if we wanted to estimate the true proportion to within ±0.08 using 95% confidence?
b)What total size sample would be necessary if we wanted to estimate the true proportion to within ±0.08 using 95% confidence?