The CEO of a Company Wants to Estimate the Percent $\sigma _ { \bar { p } } ?$

Multiple Choice

The CEO of a company wants to estimate the percent of employees that use company computers to go on Facebook during work hours with 95% confidence. He selects a random sample of 150 of the employees and finds that 53 of them logged onto Facebook that day. What is the estimate of the standard error of the proportion $\sigma _ { \bar { p } } ?$

A) 0.039
B) 0.050
C) 0.350
D) 0.455