A Large National Company Is Considering Negotiating Cellular Phone Rates

question 31

Multiple Choice

A large national company is considering negotiating cellular phone rates for its employees.The Human Resource department would like to estimate the proportion of its employee population who own an Apple iPhone.A random sample of size 250 is taken and 40% of the sample own and iPhone.The 95% confidence interval to estimate the population proportion is _______.

• A)0.35 to 0.45
• B)0.34 to 0.46
• C)0.37 to 0.43
• D)0.39 to 0.41
• E)0.40 to 0.42

---

Definitions:

Subform/Subreport

A subordinate form or report incorporated within a main form or report, used to display related data from a side table or query in database applications.

Tab Control

A graphical control element that allows multiple documents or panels to be contained within a single window, using tabs as navigational widgets.

Text Box

A graphical interface element that allows users to input text into a document or application.

Chart

A visual representation of data designed to make complex information easily understandable.