College X Is Concerned About Their Employees Making Use of Their

Multiple Choice

College X is concerned about their employees making use of their email for non-business purposes.
You have been approached to assist in this matter. College X decides on a 90% confidence level
And state that the estimation proportion must be within 2 percent of the population proportion. A
Pilot survey reveals that 8 out of 50 emails sampled were not for business purposes. How many
Emails should be surveyed to meet your requirements?

A) 910
B) 707
C) 498
D) 1,221
E) 1,000