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OOOO Unit 3 Practice Multiple Choice.pdf 1. An AP Statistics class starts a project to estimate the average number of hours

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Unit 3 Practice Multiple Choice.pdf

1. An AP Statistics class starts a project to estimate the average number of hours

a student at their high school sleeps per night. Their high school has 1200

students, and they take a sample of the first 120 students that arrive at school

on a particular day. They ask each of the 120 students how many hours of sleep

they got the night before and then calculate an average. Which of the following

statements is an accurate description of the elements of this survey?

10. (A) Population: the 120 students surveyed. Parameter of interest: the average number

of hours a student at this high school sleeps per night.

## Answers ( )

The correct answer is (C). The sample is a subset of the population, and the parameter is a characteristic of the population of interest.