Identify the sample in the following fake study:
"In a recent survey of 3,000 U.S. high school seniors, 60% reported being 'very stressed' about applying to college."
What is "the responses of the 3,000 U.S. high school seniors surveyed."
100
Name the best type of data collection method (observational study, experiment, simulation, or survey) for the following situation:
A study on the playground habits of first graders.
What is "observational study."
100
Give the level of data (nominal, ordinal, interval, or ratio) for the following:
The number of Broadway shows that each Walnut Hill student has seen.
What is "ratio."
100
In statistics, what do we call the repetition of an experiment under the same or similar conditions?
What is "replication."
100
Name the type of sampling described below.
Using a random number generator on your calculator, you pick 300 students at a college to survey.
What is "simple random sampling."
200
Identify the sample in the following fake study:
"In a study of 1500 Facebook users, 21% were 'mobile-only' users."
What is "the responses of the 1500 Facebook users."
200
Name the best type of data collection method (observational study, experiment, simulation, or survey) for the following situation:
A study on safety of a new model of car.
What is "simulation."
200
Give the level of data (nominal, ordinal, interval, or ratio) for the following:
The parts of speech (e.g. noun, verb, adjective)
What is "nominal."
200
If a subject improves due to taking a sugar pill each day, it is an example of this phenomenon.
What is "the placebo effect."
200
Name the type of sampling described below.
You survey students in your dorm about their opinions of the new Delbridge Center.
What is "convenience sampling."
300
Identify the POPULATION in the following fake study:
"In a recent survey of 3,000 U.S. high school seniors, 60% reported being 'very stressed' about applying to college."
What is "the responses of all U.S. high school seniors."
300
Name the best type of data collection method for the following situation:
A study on the approval ratings of the U.S. Secretary of State.
What is "survey."
300
Give the level of data for the following:
The weights of newborn babies.
What is "ratio."
300
An experiment in which neither the subject nor the researcher knows whether the subject is in the treatment or control group is referred to by this name.
What is "double-blind."
300
Name the type of sampling described below.
You divide the Walnut Hill student population into groups according to major. You then randomly select 20 students in each major and ask their opinions on the new Delbridge center.
What is "stratified sampling."
400
Identify the POPULATION in the following fake study:
"In a recent survey of 1300 likely New Hampshire voters, 44.3% favored Ayotte and 43.9% favored Hassan for Senate."
What is "the responses of all likely New Hampshire voters."
400
Name the best type of data collection method for the following situation:
A study on the effect of a special pillow in relieving neck pain.
What is "experiment."
400
Give the level of data for the following:
The top five movies at the box office this weekend.
What is "ordinal."
400
Identify the experimental design in which you first divide subjects with similar characteristics into groups, and then, within each group, randomly assign subjects to treatment or control.
What is "randomized block design."
400
Name the type of sampling described below.
You randomly select two Walnut Hill dorms and ask each student in those dorms about their opinions of the new Delbridge center.