Do not use StatCrunch or other statistics software for this problem. If n=100 and p (p-hat) =0.64, find the margin of error at a 90% confidence level. As in the reading, in your calculations: --Use z = 1.645 for a 90% confidence interval --Use z = 2 for a 95% confidence interval --Use z = 2.576 for a 99% confidence interval. Give your answer rounded to three decimal places. Check