Elwin Osbourne, CIO at GFS, Inc

Multiple Choice

Elwin Osbourne, CIO at GFS, Inc., is studying employee use of GFS e-mail for non-business communications.A random sample of 200 e-mail messages was selected.Thirty of the messages were not business related.The 98% confidence interval for the population proportion is _________.

A) 0.108 to 0.192
B) 0.153 to 0.247
C) 0.091 to 0.209
D) 0.145 to 0.255
E) 0.250 to 0.275