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)

---

Definitions:

Passive Voice

A grammatical voice in which the subject of the sentence is acted upon by the verb, highlighting the action rather than the doer.

Active Voice

A grammatical voice in which the subject of the sentence performs the action expressed by the verb, leading to clearer, more direct sentences.

Business Communicators

Individuals within an organization who are responsible for the exchange of information and messages among colleagues, clients, and the public.

Passive Voice

A sentence construction in which the subject of the sentence is acted upon by the verb, often downplaying the subject's role in the action.