05/26/2021 - Trig H

Identify the following data set:

....a survey of just Mr. Winking’s students in ratings of Meadow creek High School for a study on Meadow creek High School

• Population

• Sample

Identify the following data set:

....a manager of a movie theater was asking customers at the concession stand how they would rate the theater’s staff

• Population

• Sample

A beverage company wanted to see if people in the United States liked their new logo. Which choice best represents a population?

• A selection of logo artists.

• Every person in the United States.

• A selection of shoppers from different states.

• 3,800 children age 5 - 15

A musician wanted to see what people who bought his last album thought about the songs. Which choice best represents a sample? .

• Every person who bought the album.

• A selection of people who didn't want to buy the album.

• 250 girls who bought the album

• A selection of 3,294 people who bought the album.

The statistic is a number describing the:

• population

• sample

• survey

• percent

The parameter is a number describing the:

• population

• sample

• survey

• percent

A researcher randomly assigned boys and girls to each of two groups. One group was assigned to watch a violent television program while the other group watched a nonviolent program. The children's behavior was then recorded for incidences of aggressive behavior. This research method is best characterized as...

• experimental

• Observation

To test the effects of breakfast on grades I ask my students if they ate breakfast and then compare the breakfast eaters grades to the non-breakfast eaters.

This is an example of:

• Observational study

• Experiment

11. Larger random sample sizes are more representative of a population.

• A. True
• B. False

A mayor wanted to see if the people in his town thought he was doing a good job. Which choice best represents a sample?

• 1,000 unemployed voters.

• The mayor's family.

• The residents of the town.

• 242 voters.