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- Sampling and data
- Sampling and data: homework
This module presents students with a number of problems related to statistical sampling and data. In particular, students are asked to demonstrate understanding of concepts such as frequency, relative frequency, and cumulative relative frequency, random samples, quantitative vs. qualitative data, continuous vs. discrete data, and other key terms related to sampling and data. Labs changed to incorporate mini-tabs.
For each item below:
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I
Identify the type of data (quantitative - discrete, quantitative - continuous, or qualitative) that would be used to describe a response.
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Ii
Give an example of the data.
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A
Number of tickets sold to a concert
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B
Amount of body fat
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C
Favorite baseball team
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D
Time in line to buy groceries
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E
Number of students enrolled at Evergreen Valley College
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F
Most–watched television show
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G
Brand of toothpaste
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H
Distance to the closest movie theatre
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I
Age of executives in Fortune 500 companies
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J
Number of competing computer spreadsheet software packages
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A
quantitative - discrete
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B
quantitative - continuous
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C
qualitative
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D
quantitative - continuous
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E
quantitative - discrete
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F
qualitative
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G
qualitative
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H
quantitative - continuous
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I
quantitative - continuous
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J
quantitative - discrete
Fifty part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below:
Part-time student course loads
| # of Courses |
Frequency |
Relative Frequency |
Cumulative Relative Frequency |
| 1 |
30 |
0.6 |
|
| 2 |
15 |
|
|
| 3 |
|
|
|
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A
Fill in the blanks in the table above.
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B
What percent of students take exactly two courses?
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C
What percent of students take one or two courses?
Sixty adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The (incomplete) results are shown below:
Flossing frequency for adults with gum disease
| # Flossing per Week |
Frequency |
Relative Frequency |
Cumulative Relative Freq. |
| 0 |
27 |
0.45 |
|
| 1 |
18 |
|
|
| 3 |
|
|
0.93 |
| 6 |
3 |
0.05 |
|
| 7 |
1 |
0.02 |
|
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A
Fill in the blanks in the table above.
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B
What percent of adults flossed six times per week?
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C
What percent flossed at most three times per week?
A fitness center is interested in the average amount of time a client exercises in the center each week. Define the following in terms of the study. Give examples where appropriate.
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A
Population
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B
Sample
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C
Parameter
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D
Statistic
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E
Variable
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F
Data
Ski resorts are interested in the average age that children take their first ski and snowboard lessons. They need this information to optimally plan their ski classes. Define the following in terms of the study. Give examples where appropriate.
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A
Population
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B
Sample
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C
Parameter
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D
Statistic
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E
Variable
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F
Data
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A
Children who take ski and snowboard lessons
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B
A group of these children
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C
The population average
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D
The sample average
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E
= the age of one child who takes the first ski or snowboard lesson
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F
A value for
, such as 3, 7, etc.
A cardiologist is interested in the average recovery period for her patients who have had heart attacks. Define the following in terms of the study. Give examples where appropriate.
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A
Population
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B
Sample
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C
Parameter
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D
Statistic
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E
Variable
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F
Data
Insurance companies are interested in the average health costs each year for their clients, so that they can determine the costs of health insurance. Define the following in terms of the study. Give examples where appropriate.
-
A
Population
-
B
Sample
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C
Parameter
-
D
Statistic
-
E
Variable
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F
Data
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A
The clients of the insurance companies
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B
A group of the clients
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C
The average age of the clients
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D
The average age of the sample
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E
= the age of one client
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F
A value for
, such as 34, 9, 82, etc.
Questions & Answers
I'm interested in biological psychology and cognitive psychology
what does preconceived mean
How can I develope my cognitive domain
why is communication effective
Communication is effective because it allows individuals to share ideas, thoughts, and information with others.
effective communication can lead to improved outcomes in various settings, including personal relationships, business environments, and educational settings. By communicating effectively, individuals can negotiate effectively, solve problems collaboratively, and work towards common goals.
it starts up serve and return practice/assessments.it helps find voice talking therapy also assessments through relaxed conversation.
miss
Every time someone flushes a toilet in the apartment building, the person begins to jumb back automatically after hearing the flush, before the water temperature changes. Identify the types of learning, if it is classical conditioning identify the NS, UCS, CS and CR. If it is operant conditioning, identify the type of consequence positive reinforcement, negative reinforcement or punishment
please i need answer
Wekolamo
because it helps many people around the world to understand how to interact with other people and understand them well, for example at work (job).
Agreed 👍 There are many parts of our brains and behaviors, we really need to get to know. Blessings for everyone and happy Sunday!
ARC
A child is a member of community not society elucidate ?
Isn't practices worldwide, be it psychology, be it science. isn't much just a false belief of control over something the mind cannot truly comprehend?
compare and contrast skinner's perspective on personality development on freud
Skinner skipped the whole unconscious phenomenon and rather emphasized on classical conditioning
war
explain how nature and nurture affect the development and later the productivity of an individual.
nature is an hereditary factor while nurture is an environmental factor which constitute an individual personality. so if an individual's parent has a deviant behavior and was also brought up in an deviant environment, observation of the behavior and the inborn trait we make the individual deviant.
Samuel
I am taking this course because I am hoping that I could somehow learn more about my chosen field of interest and due to the fact that being a PsyD really ignites my passion as an individual the more I hope to learn about developing and literally explore the complexity of my critical thinking skills
and having a good philosophy of the world is like a sandwich and a peanut butter 👍
Jonathan
generally amnesi how long yrs memory loss
interpersonal relationships
What would be the best educational aid(s) for gifted kids/savants?
treat them normal, if they want help then give them.
that will make everyone happy
Saurabh
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Source:
OpenStax, Collaborative statistics (with edits: teegarden). OpenStax CNX. Jul 20, 2009 Download for free at http://legacy.cnx.org/content/col10561/1.3
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