Answered You can hire a professional tutor to get the answer.
In the absence of preliminary data, how large a sample must be taken to ensure that a 95% confidence interval will specify the proportion to within ±0.02? round up the answer to the nearest integer.
In the absence of preliminary data, how large a sample must be taken to ensure that a 95% confidence interval will specify the proportion to within ±0.02? round up the answer to the nearest integer.