AP Statistics: Collecting Data Practice Test
AP Statistics: Collecting Data Practice Test
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A drug company wants to test whether its medication reduces cancer risk. Assuming the company conducts an experiment in which participants are randomly assigned to treatment and control groups, what would the appropriate control group look like?CorrectIncorrect
In a public health study, researchers want to see how the addition of fresh produce stands in inner cities can affect the body weights of people who live within 1 mile of the stands.The research group gathers data from several groups. Please identify which is the Control group.CorrectIncorrect
You and your classmate want to test the effect of food coloring on plant color. One of the groups in the experiment receives dye-free water. Which group is this?CorrectIncorrect
You and your friend want to test the effect of different brands of fertilizer on sunflower height.
One group receives no fertilizer during the course of the experiment.
Which group is this?CorrectIncorrect
Of the following examples, which best describes quantitative data?CorrectIncorrect
When designing an experiment, what is the purpose of blocking?CorrectIncorrect
Which of the following is an example of qualitative data?CorrectIncorrect
A researcher wants to randomly assign participants to a treatment and control group. Which of the following approaches ensures that the treatment assignment is random?CorrectIncorrect
What type of sample was used in the following scenario:
Brad wants to know about the shopping habits of teenagers. He goes to the local mall and every time he sees a teenager he asks them to fill out his survey. He spends one hour collecting responses on the top floor of the mall and one hour collecting responses on the bottom floor of the mall.CorrectIncorrect
Which of the following experiments has the least amount of bias?CorrectIncorrect
Which of the following is (are) important in designing an experiment?
1.Control of all variables that might have an influence on the response variable
2.Randomization of subjects to treatment groups
3.Use of a large number of subjects to control for small-sample variabilityCorrectIncorrect
A botanist wants to test whether sunflowers in three different temperature environments – cold, medium, and hot – can produce more or fewer glucose. The 300 sunflowers seeds were each given an equal volume of water (500 mL), each separated randomly into three identical greenhouses. The results were collected. Which of the following is TRUE?CorrectIncorrect
A history teacher wanted to determine whether essays or multiple choice were more effective in testing all of his students on content learned. The twenty-four students in the classroom were randomly assigned either the essay or the multiple choice treatment via coin flip into two equally sized groups. Was there a flaw with the experiment?CorrectIncorrect
The U.S. Bureau of Labor Statistics collects sample data from households. In the Consumer Expenditure Survey, approximately 500,000 households have been randomly selected to partake in the survey. 300,000 households responded; only 200,000 returned their results, where 20 strata are separated based on income. What is the sample size of the Consumer Expenditure Survey?CorrectIncorrect
Data were collected in 20 cities on the percentage of women in the workforce in 1990 and in 1994. Gains or losses in this percentage were the measurement upon which the study’s conclusion was to be based. What kind of design was this?
I. A matched-pair design
II. II. An observational study
III. III. An experiment using a block designCorrectIncorrect
You want to do a survey of members of the senior class at your school using a simple random sample. You intend to include 40 students in your sample. Which of the following approaches will generate a simple random sample?CorrectIncorrect
Algebra Teacher John Kayne-Blu asked the first 15 students to enter his first period class the amount of time they spend doing their homework using technology. What is a large problem associated with this survey?CorrectIncorrect
Which of the following survey demonstrates response bias?CorrectIncorrect
The web portal AOL places opinion poll questions next to many of its news stories. Simply click your response to join the sample. One of the questions in January 2008 was “Do you plan to diet this year?” More than 30,000 people responded, with 68% saying “Yes.” You conclude that…CorrectIncorrect