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Duplicate of Chapter 4: Probability & Statistics Flashcards | StudBud
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Duplicate of Chapter 4: Probability & Statistics
Duplicate of Chapter 4: Probability & Statistics
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Answers
1
What is bias? (In a statistical study)
If the value is wrong
If the value is true
If it underestimates the value of what you want show
If it over estimates the value that you want
2
Treatment is?
Careful planning
Two variables
A condition applied to a individual
A condition applied to the conductor
3
Keeping other variables constant for all other experimental units
Dependent
Chaos
Independent
Control
4
Systematic pattern of inaccurate answers to a survey question
Halo Effect
Hindsight Bias
Fundamental Attribution Error
Response Bias
5
The different value of factors are?
Variables
Levels
Variety
Stages
6
Experimental units are assigned to the treatments by chance completely by chance
CRD
Completely Randomized Design
Incomplete Straightforward Concept
Totally Random Experiment
7
An _______ study observes individuals and measures variable of interest but does not attempt to influence the response
Sample
Viewing
Observational
Direct
8
Known before the experiment to be similar in a way that is expected to affect the response to the treatment
Rock
Block
Mock
Sock
9
How does simple random sample differ from random sample
The selection is different
No change
Uses a different variable
The size is different and uses variables
10
Common design for comparing two treatments that uses blocks of size 2
Two matching socks
Matched Pairs Design
Disorganized mismatched Idea
Statistical Analysis Design
11
How does Voluntary response sampling gather a population
By randomly asking
By asking based on a certain quality
By responding to a general invite
Based on gender
12
Observed results that are too abnormal to be explained by chance alone
Outlier
Analytically trivial
Abnormality
Statistically significant
13
What a placebo?
Something you like in an study
Treatment in a study with no active ingredient
The factor of a study
Result value of a experiment
14
What are the people called in the experimental unit?
Subject
People
Individual
Tester
15
Individual chosen for the sample can’t be contacted or refuses to participate
Nonresponse
Null response
Yesresponsive
Middleresponsive
16
Population that is less likely to be chose or cannot be chosen in a sample
Middlewaysemicovered
Hemisphere
Overexposed
Undercoverage
17
_______ unit is who the treatment applied too
Testing
Scientific
Experimental
Placebo
18
What’s a convenience sample?
Selects based on a group
Selects randomly
Select by people who are best for it
Selects from people easy to reach
19
What is a cluster
Random people placed in a random group
Picking based on personality
By selecting people that are located near each other
Picking using the study
20
Using enough experimental units to see a difference in the effect of the treatment via random assignment
Addition
Replication
Multiplication
Subtraction
21
How does stratified random sampling select people?
By randomly selecting in a population
By randomly selecting from each strata in a study and picking randomly
By selecting each strata and picking not randomly
By using one strata to randomly chose in a group
22
Different random samples of same size population = production of different estimates
Population density
Sample size
Replication
Sampling Variability
23
The subset of a population is called (in a data set).
Select amount
Sample
Citizens
Volunteers
24
Cluster _____ selects a _____ by randomly choosing clusters and including each member in the selected ______
Sample
Picking
Choosing
Selecting
25
When two variables are associated in such a way that their effects on a response variable cannot be distinguished.
Equal
Same
Confounding
Unknown
26
A ________ _______ is a study that collects data from a sample that is chosen to represent a specific population
Example study
Size study
Sample study
Population study
27
Experimental units are assigned to treatments via a chance process
Mystery Wheel Of Wonders
Random Assignment
Straightforward Task
Modnar Tnemngissa
28
What is a strata
People who have similar names
People are different and are in the study
People who don’t share anything in common
People who share characteristics which go with the study
29
What’s the type of study that imposes a treatment on individuals to measure a response?
Confounding
Test
Experiment
Conducting
30
The experimenters OR the participants don’t know who received the treatment to measure the response variable
Single Blind
Singularity Blind
Monochrome Blind
Mono Blind
31
Random assignment of experimental units to treatments is carried out separately within each block
Randomized Block Design
Block
Design
Straightforward Cube Idea
32
A type of experiment in which the experimenters nor the participants know whether they had received the treatment
Mono Blind
Triple Blind
Double Blind
Penta Blind
33
What is it called when a study collects data from the population?
Bias
Population
Collecting data
Census
34
The __________ in a statistical study is the entire group of individuals we want information about
Sample
Amount
Population
Census
35
What’s a variable that is manipulated to cause change in the response variable?
Factor
Changed
Obstructed
Unit
36
_______ sampling involves using chance to determine who is included in the population
Voluntary
Random
Dice
Half
37
This effect describes that some subjects in an experiment will respond favorably to any treatment, even an inactive one.
Deception Effect
Sugar Pill
Obecalp Effect
Placebo Effect
38
A ______ is used to provide a baseline for comparing the effects of other treatments
Independent Variable
Independent Group
Dependency Group
Control Group
