PSY230 L1
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School
Rio Salado Community College *
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Course
230
Subject
Industrial Engineering
Date
Feb 20, 2024
Type
Pages
7
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Introduction
Assessment Feedback
Thank you for your participation in this assignment. Your work has been submitted to your instructor. Please
allow time for him or her to grade and respond to your work.
Total score: 19 out of 20, 95%
Question
1 of 20
Select the best description of what is meant by “statistical literacy.”
Being able to correctly calculate numerical results.
Memorizing statistical formulas.
A necessary skill to help one interpret statistical results and decide on their merits.
The proportion of students successfully completing PSY 230.
1 out of 1
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Question
2 of 20
Which is an example of descriptive statistics?
Drawing conclusions about the population.
Make generalizations based on data from a sample.
Describing and summarize data from a sample.
Inferring trends about a larger population.
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Question
3 of 20
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Which is an example of inferential statistics?
Gathering information from a sample.
Drawing a conclusion about a population based on sample data.
Summarizing and describing data from a sample.
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Question
4 of 20
Describe the relationship between descriptive and inferential statistics.
Descriptive statistics make predictions based on data and inferential statistics describe data.
Descriptive statistics describe data and inferential statistics make predictions based on the data.
Inferential statistics are more computationally sophisticated than descriptive statistics.
Descriptive statistics are more computationally sophisticated than inferential statistics.
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Question
5 of 20
The population is all of the United States citizens that are voting age. Selecting a random sample of people
in California would be a representative sample.
True
False
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Question
6 of 20
The population is all Arizonans. Selecting all college educated citizens would be a representative sample.
True
False
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Question
7 of 20
A clinical researcher wants to be sure that her data includes test results from ethnic groups in proportion to
their presence in the population she is drawing participants from. What sampling method should she use?
Random sampling
Stratified sampling
Cluster sampling
Convenience sampling
Systematic sampling
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Question
8 of 20
A researcher wants to estimate the average shoe size of 30-year-old men in Arizona. From a random
sample of 50 men, the researcher obtains an average show size of 10.5. The average shoe size of 10.5 is
considered a:
Population
Parameter
Sample
Statistic
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Question
9 of 20
In a survey, a sample of high school students, 43% said their mother has taught them the most about
managing money. Is that a parameter of a statistic?
parameter
statistic
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Question
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10 of 20
A numerical description of a sample characteristic is a
variable
generalization
statistic
parameter
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Question
11 of 20
Distinguish between qualitative and quantitative variables.
Truck drivers typically need to have their trucks weighed while traveling across country. The weight of the
truck is considered which type of variable?
Qualitative
Quantitative-discrete variable
Quantitative- continuous variable
Independent
0 out of 1
The correct answer is:
Quantitative- continuous variable
Question
12 of 20
If psychologists were researching whether men or women are more fulfilled in the workplace. Which
would be the dependent variable?
Gender
Level of fulfillment
Level of job
Salary
The psychologists
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Question
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13 of 20
Distinguish between qualitative and quantitative variables.
Frank was completing a questionnaire for a research study at a hospital he works for. One of the questions
asked for the number of pets he owns. This is an example of what type of variable?
Qualitative
Quantitative-discrete variable
Quantitative- continuous variable
Independent
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Question
14 of 20
Place you finish in a race is an example of which scale of measurement?
nominal
ordinal
interval
ratio
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Question
15 of 20
Finishing place for a gymnast is an example of which scale of measurement?
nominal
ordinal
interval
ratio
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Question
16 of 20
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Temperature to cook a turkey is an example of which scale of measurement?
nominal
ordinal
interval
ratio
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Question
17 of 20
Reliability refers to whether we are truly measuring the concept of interest in our study.
True
False
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Question
18 of 20
The level of consistency of an instrument and the degree to which the same results are obtained when the
instrument is used repeatedly with the same individuals or group.
validity
variance
reliability
stability
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Question
19 of 20
Some issues that can arise with statistical studies include:
confusing cause and effect
overgeneralization
confounding variables
All the above are examples of issues with statistical studies.
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Question
20 of 20
If you wanted to complete a study to see how many children at recess actually tell someone when they are
bullied by another child, you would do which type of study?
Experimental
Observational
Simulations
None of the above
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