Statistics Unit 1 Test Review

A researcher randomly assigned students to two groups. One group was assigned to watch a violent television program while the other group watched a nonviolent program. The student's behavior was then recorded for incidences of aggressive behavior. Which research method is most appropriate?

• experimental

• census

• sample survey

• observational study

Jane Goodall lived among wild chimpanzees intermittently for decades, studying their social and family systems while keeping her interaction with the chimpanzees to a minimum. Which research method is most appropriate?

• biased study

• census

• experiment

• observational study

Ghala wanted to know what the most popular book was in the whole school, so she asked everybody in 11th grade what their favorite book was. Which research method is most appropriate?

• Sample Survey

• Census

• Experiment

• Biased Sample

Osman wanted to know what this weekends favorite movie was among RBHS students so he asked everyone at RBHS and counted the number of movie preferences.

Which research method is most appropriate?

• Census

• Sample Survey

• Experiment

• Biased Sample

A researcher stood at a school parking lot entrance to see if the color of a car is related to the driver not wearing a seat belt.

Which research method is most appropriate?

• Observational Study

• Experiment

• Census

• Correlation

Ken wants to compare how many hours a week that sixth graders spend doing mathematics homework to how many hours a week that eleventh graders spend doing mathematics homework. He randomly selects ten sixth graders and ten eleventh graders and records how many hours each student spent on mathematics homework in a certain week.

What study is described?

• Survey

• Experimental Study

• Observational Study

A large high school wants to know the proportion of students who currently arrive to school on time. Academy Administrators asked a random sample of 𝟐𝟎𝟎 students about their arrival times.

What type of study is described?

• Survey

• Experimental Study

• Observational Study

What data technique should be used to conduct a study of the effect of turbulence on aluminum-based planes?

• simulation

• sample survey

• census

• experiment

The average annual salary for 35 of a company's 1200 accountants is $68,000.

• parameter
• statistic

In a survey of a sample of high school students, 43% said that their mother has taught them the most about managing money.

• parameter
• statistic