College X Is Concerned About Their Employees Making Use of Their

College X is concerned about their employees making use of their email for non-business purposes.
A random sample of 400 e-mails discovered 40 messages that were not business related. The 95%
Confidence interval for the population proportion is:

A) 0.199 to 0.201
B) 0.101 to 0.199
C) 0.07060 to0.12940
D) 0.0753 to 0.1247
E) 0.0700 to 0.1000