Sample or Population: The age of each member of the US Senate.
What is population?
100
Only members of the population who are easily accessible are selected
What is convenience sample?
100
Level of measurement: The social security numbers of your classmates.
What is nominal?
100
Data collection type: A study in which the response variable is measured without attempting to influence the value of the explanatory variable. The researcher simply observes behavior of individuals in the study.
What is observational study?
100
Chose a simple random sample of size 2 from the following people:
1. Jim
2. Sally
3. Jose
4. Kiefer
Use the random numbers to pick the people:
11793 20495 05907
What is Jim and Jose?
200
Sample or Population: A study of 33,043 infants out of all the infants in Italy was conducted to find a link between a heart rhythm abnormality and sudden infant death syndrome.
What is a sample?
200
Sampling Technique: Number every unit of the population and randomly generate numbers to select (each unit or group of units has the same chance of being selected).
What is simple reandom sample?
200
Level of measurement: The daily temperatures in the month of May.
What is interval?
200
Pick the best method of data collection: A study of how fast a virus would spread in a metropolitan area.
What is a simulation?
200
There are 731 students currently enrolled in statistics at your school. You wish to form a sample of three students to answer some survey questions. Assign the students a numbers from 1 to 731 and select three students.
Use the random numbers
71966 27386 50004 05358
What is 719, 662, 650?
300
Qualitative or quantitative: The player numbers for a soccer team.
What is a qualitative?
300
Sampling technique: The subjects are ordered in some way. A starting point is chosen randomly. From the starting point pick the nth subject (For example, every 5th person).
What is systematic sample?
300
Level of measurement: Number of years at your last job.
What is ratio?
300
Pick the best method of data collection: A study of the effects of eating oatmeal on lowering blood pressure. Group A would eat oatmeal and group B would not eat the oatmeal. Each groups blood pressure measurements would be compared.
What is an experiment?
300
A survey question was asked - "Why is drinking fruit juice good for you?" Pick whether this question would lead to an overestimate or underestimate of the results about fruit juice.
What is an overestimate?
400
Qualitative or quantitative: The number of people who drive a green car.
What is quantitative?
400
Sampling technique: Group the population into like groups. A sample is then selected from each group.
What is stratified sample?
400
Level of measurement: Movie ratings - G, PG, PG-13, R, NC-17
What is ordinal?
400
Pick the best method of data collection: A study of U.S. residents' approval rating of the U.S. president.
What is a survey?
400
The main reason to conduct a double-blind experiment is _____.
What is bias?
500
Parameter or statistic: In a survey of a sample of computer users, 8% said their computer had a malfunction that needed to be repaired by a service technician.
What is a statistic?
500
Sampling technique: Group the population into naturally occurring subgroups. Pick a certain number of groups and use all the subjects in the picked groups.
What is cluster sampling?
500
Level of measurement: Mt Everest is 29,029 feet above sea level.
What is interval?
500
Pick the best method of data collection: A study of the ages of all 535 members of the U.S. Congress.
What is census?
500
The problem with call in surveys is that the results can be an underestimate because of ____________.