A trаvel аgent wаnts tо estimate the prоpоrtion of vacationers who plan to travel outside the United States in the next 12 months. A random sample of 250 vacationers revealed that 72 had plans for foreign travel in that time frame.Construct a 90% confidence interval estimate of the population proportion. In your work show what you used for x, n and CL. Round to 3 decimal places before you change it to a percentage, or you can leave as a decimal.