In Order to Determine the Summer Unemployment Rate Among College

Short Answer

In order to determine the summer unemployment rate among college students in a university, a pilot sample was taken; and it was determined that ten percent of the individuals in the sample were unemployed.Using the results of the pilot study and a 95% confidence, what sample size would be required to estimate the proportion of unemployed college students in the university if we want the margin of error not to exceed 3 percent?