A Survey of Randomly Selected University Students Found That 83

question 15

Multiple Choice

A survey of randomly selected university students found that 83 of the 110 first year students and 87 of the 120 second year students surveyed had purchased used textbooks in the past year.Construct a 98% confidence interval for the difference in the proportions of first and second year university students who purchased used textbooks.

• A)(-0.084,0.868)
• B)(-0.105,0.164)
• C)(0.641,0.868)
• D)(0.620,0.890)
• E)(0.620,0.868)

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Definitions:

Wired Ethernet Networks

Local Area Networks (LANs) that use physical cables to connect devices and facilitate communication.

IEEE 802.11ac Standard

A wireless networking standard, also known as Wi-Fi 5, designed to provide high-throughput wireless local area networks on the 5 GHz band.

Wireless ISP

An Internet service provider that provides services through wireless networking technology rather than traditional wired methods.

Internet

A global network connecting millions of computers for communication and information exchange.