A Large National Company Is Considering Negotiating Cellular Phone Rates

question 78

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 90% 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 0.45

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Definitions:

Biased

Showing an inclination or prejudice for or against one person or group, especially in a way considered to be unfair.

Prejudiced Information

Information that is biased, often based on stereotypes or misconceptions, which can affect judgment and decision-making.

Web Site's Address

The unique locator, known as a URL, that defines a resource on the Internet like a webpage.

Descriptive Research Study

A study aimed at describing characteristics of a population or phenomenon, often through observation, surveys, or interviews, without influencing the subjects.