Many states are carefully considering steps that would help them collect sales taxes on items purchased through the internet. How many randomly selected sales transactions must be surveyed to determine the percentage that transpired over the internet? Assume that we want to be 95% confident that the sample percentage is within six percentage points of the true population percentage for all sales transaction
N = __( round up to the nearest integer)

Question

Many states are carefully considering steps that would help them collect sales taxes on items purchased through the internet. How many randomly selected sales transactions must be surveyed to determine the percentage that transpired over the internet? Assume that we want to be 95% confident that the sample percentage is within six percentage points of the true population percentage for all sales transaction
N = __( round up to the nearest integer)

anonymous · Answer

I will not solve the problem for you but will try to guide you towards the solution.
At this point, they must have explained to you the formula for sample size calculation for proportions. Which part of the formula you do not understand?