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Duplicate of Statistics - Chapter 1 Flashcards | StudBud
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Duplicate of Statistics - Chapter 1
Duplicate of Statistics - Chapter 1
18 terms
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StudBud Administration
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A review of Chapter 1
Flashcards
18 cards
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Practice quiz
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Questions
18
Answers
1
A ___makes it hard to determine whether an outcome is actually due to the applied treatment.
Confounder
Error
Perplexer
Uncooperative subject
2
A person's hair color would be an example of a quantitative variable.
False
True
3
In a study, it is always better for the researcher to carefully choose his participants.
True
False
4
Which one of the following data are discrete?
the latitude and longitude of the boat's port of departure
the speed of the boat's propeller
the latitude and longitude of a boat at sea
the number of crew members on the boat
5
Which is NOT qualitative data?
The license plate number VNS-862
The color of the vehicle with license plate number VNS-862
The make of the car with license plate number VNS-862
The number of vehicles with plates beginning with VNS
6
The number of birds in a tree is an example of a continuous variable.
True
False
7
A dependent variable can also be referred to as an response variable.
False
True
8
Which of the following sample types should you always regard as unreliable?
Cluster samples
Simple random samples
Convenience samples
Stratified samples
9
The variable of height is an example of a quantitative variable.
False
True
10
Inferential statistics is based on probability.
False
True
11
Quantitative data can be further classified as continuous or nonsequential.
True
False
12
A factory tests every 500th cell phone for defects. What kind of sampling is this?
Systematic
Stratified
Cluster
Simple Random Sample
13
When running an exp. study, the group that is manipulated can be called the treatment group.
False
True
14
Subjects are put into 2 categories, and then each is randomly assigned a treatment. Example of:
Confounding
Gender bias
Observational studies
Randomized blocking
15
Based on my bills from last year, I expect to pay $75 per month for electricity this year.
This is an example of inferential statistics.
This is an example of descriptive statistics.
16
Four basic sampling methods: Random, irregular, cluster, and stratified.
False
True
17
Which of the following data are continuous?
The rankings of trees, from most to least numerous
The number of representatives of each species in the park
The number of species of trees in the park
The average height of a sample of trees
18
Questioning every 14th customer leaving a theatre would be an example of systematic sampling.
False
True
