Chapter 1-3 review

The board members of a particular school district are trying to get teachers’ feedback on an important issue. They randomly select 9 of the schools in the district and interview all the teachers in those 9 schools. Which sampling method are they using?

• Cluster random sample

• Stratified random sample

• Simple random sample

• Systematic random sample

The board members of a particular school district are trying to get teachers’ feedback on an important issue. They believe the teachers at different school levels (elementary, middle, and high school) will have different opinions. So, they separate the schools into three groups based on the three school levels. Then, they randomly select teachers from each group to interview. Which sampling method are they using?

• Stratified random sample

• Cluster random sample

• Simple random sample

• Systematic random sample

The board members of a particular school district are trying to get teachers’ feedback on an important issue. They list all teachers alphabetically, assign each teacher a three-digit number, and randomly select 100 of those numbers. Then, they interview the teachers who have those numbers. Which sampling method are they using?

• Simple random sample

• Cluster random sample

• Stratified random sample

• Systematic random sample

The board members of a particular school district are trying to get teachers’ feedback on an important issue. They list all the schools alphabetically and select every 5^th school on the list. Which sampling method are they using?

• Systematic random sample

• Simple random sample

• Cluster random sample

• Stratified random sample

Determine whether the following variable is quantitative or categorical: Body temperature

• Quantitative

• Categorical

Determine whether the following variable is quantitative or categorical: The number of answers missed on a test

• Quantitative

• Categorical

Social Security number

• Categorical

• Quantitative

Favorite movie

• Categorical

• Quantitative

Places in a race (first place, second place, third place, etc.).

• Categorical

• Quantitative

A local high school is interested in the students' opinion about having pep rallies. There are 1452 students in the school. One hundred students are selected and interviewed. Which value is a parameter, and which one is a statistic, or are they both parameters or both statistics?

• 1452 is a parameter, and 100 is a statistic

• 100 is a parameter, and 1452 is a statistic

• Both 1452 and 100 are statistics

• Both 1452 and 100 are parameters