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Chapter 7: Q. 3 (page 454)

Fillings How much do prices vary for filling a cavity? To find out, an insurance company randomly selects 10dental practices in California and asks for the cash (non-insurance) price for this procedure at each practice. The interquartile range is $74.

Short Answer

Expert verified

Population: Dental practices
Parameter: IQR of price
Statistic: IQR for 10selected practices.

Step by step solution

01

Given information

We have been given that

No. of dental practices selected randomly were 10.

The interquartile range was decided to be$74.

02

Explanation

Population: It consists of all the dental practices in California.

Parameter: Interquartile range of price to fill a cavity for all dental practices in California.

Statistic: Interquartile range ($74)for 10selected dental practices in California.

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Section II: Free Response Show all your work. Indicate clearly the methods you use, because you will be graded on the correctness of your methods as well as on the accuracy and completeness of your results and explanations.
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