Last Week, 108 Cars Received Parking Violations in the Main

question 48

Multiple Choice

Last week, 108 cars received parking violations in the main university parking lot. Of these, 27 had unpaid parking tickets from a previous violation. Assuming that last week was a random sample of all parking violators, find the 95 percent confidence interval for the percentage of parking violators that have prior unpaid parking tickets.

• A)18.1 to 31.9 percent.
• B)16.8 to 33.2 percent.
• C)15.3 to 34.7 percent.
• D)19.5 to 30.5 percent.

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Definitions:

Placebo Group

A control group in a study that receives a sham treatment, allowing researchers to compare the effects of the real treatment on another group.

Treatment

Treatment encompasses the methods and applications used to manage or cure disease, relieve symptoms, or address psychological issues.

Experiment

A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact through controlled investigation.

Control Group

A control group is a baseline group in an experiment that does not receive the experimental treatment, used for comparison against the experimental group.