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General Vocabulary
Level of Measurement
Quantitative vs. Qualitative
Type of Sampling
Observational vs. Experimental
100
What is the group within an experimental called that receives no treatment?
What is Control Group
100
Salaries of women who are chief executive officers in corporations
What is Ratio
100
Weights of newborns
What is Quantitative
100
The names of a group of 300 students are placed into a hat and 50 names are drawn
What is Simple Random Sample
100
What can be shown about the relationship between two variables in an experiment?
What is cause and effect
200
What is "double blinding"? And why is it important?
What is when both the researcher and subject do not know the level of treatment. It helps avoid bias.
200
Movie ratings of one star, two, three, or four stars.
What is Ordinal
200
The interval and ratio levels of measurement are used for what kinds of data?
What is Quantitative
200
A market researcher selects 500 drivers under 30 years of age and 500 drivers over 30 years of age
What is Stratified
200
A researcher obtains data about the effects of alcohol on driving by examining car crash reports.
What is Observational
300
Based on a sample of 877 surveyed executives, it is found that 45% of them would not hire someone with a typographical error on their resume. Is this a parameter or a statistic?
What is Statistic
300
Body Temperature
What is Interval
300
Discrete or Continuous? # of eggs that hens lay
What is Discrete
300
To avoid working late, a quality control analyst simply inspects the first 100 items produced in a day
What is Convenience
300
A researcher surveys 500 households to determine the proportion of households tuned into Saturday Night Live.
What is Observational
400
Name the four parts of statistics
What is to Collect, Organize, Analyze, Draw Conclusions from data
400
Survey responses of yes, no, and undecided
What is Nominal
400
Discrete or Continuous? Amount of milk from a cow
What is Continuous
400
A market researcher selects every 10th person from the population and surveys them
What is Systematic
400
Cruise ship passengers are given magnetic bracelets, which they agree to wear in an attempt to diminish the effects of motion sickness.
What is Experimental
500
A variable that interferes with other variables in a study is called a
What is Confounding Variable
500
A magazine ranks cities according to 'livability' as first, second, third, and so on.
What is Ordinal
500
Is the data discrete or continuous? “In a survey of 1059 adults, it is found that 39% of them have VCRs in their homes”
What is Discrete
500
An education researcher randomly selects 48 middle schools and interviews all of the teachers at each school
What is Cluster
500
In a poll of 50,000 randomly selected college students, 74% answered “yes” when asked “Do you have a television in your dorm room?” Define the population and the sample.
Population = all college students living in a dorm Sample = 50,000 randomly selected college students living in a dorm