The 5 W's
Population of Interest and Sample
Categorical and Quantitative Data
Categorical and Quantitative Units
Misc
100
Identify the who:
37 refrigerator models
100
Identify the population of interest
All fridges being sold
100
Identify the categorical data in the following
Overall Rating, Type, Brand
100
List the variables for the following and identify them as categorical or quantitative.. Some may be in both categories.
Catergorical: Race or Ethnicity, Current Grade, Disabilities
Quantitative: Age, Days Absent, Current Grade, Standardized Test Scores in Reading and Math,
100
Identify the who:
34 other companies with similar plans
200
Identify the what:
Brand, Cost, Size, Type, Estimated Annual Energy Cost, Overall Rating, and Repair History
200
Identify the population of interest and the sample:
Sample: 478 participants
Population of interest: All People
200
Quantitative
200
Identify the Units for each variable in the situation:
Age: Not specified
Race: No units
Days absent: Days
Current Grade Level: No units
Standardized test scores: Not Specified
Disabilities: No unit
200
Identify the what
401k participation rates
300
Identify the who and the population of interest:
Who: 20,784 people surveyed
Population of interest: All American Workers
300
Identify the population of interest and sample size:
Population of interest: all buffalos
Sample: 57 buffalos captured
300
Quantitative
300
Identify the variables as quantitative or categorical and state what units of measurement are used
Quantitative: number of calories (calories) and serving size (oz)
Categorical: type of meat (no units)
300
Identify the who and the what
who: the 10 crankshafts
what: the pouring temp
400
Identify the what and label them as categorical or quantitative variables
Categorical: gender, race, field, previous experience, education, position, phone status
Quantitative: age, salary
400
Identify the population of interest and the sample size:
sample: 138 books released
population of interest: all books
400
Is the value of business analysts a variable in this situation? If so, what is it measured in?
No
400
Are the variables categorical and/or quantitative for the situation? What are they and what are their units of measurement?
both. one variable is treatment which has no units and the other is the cold severity with a range of 0 to 5.
400
A farmer wants to determine the average number of apples on each apple tree in his orchard. The farmer selects a random sample of 25 apple trees from the orchard. What is the population of interest? What is the sample?
population of interest: all the trees in his orchard
sample: the random 25 trees in his orchard
500
What is the who, what, when, where, and why of the following situation:
Who: vineyards
What: size, time in existence, state, varieties of grapes, average price per ton, gross sales, and percent profit
When: Not given
Where: Not given
Why: to help American grape growers
500
Identify the population of interest and the sample:
A sports analyst wants to gather information about the average weight of a division 1 college football offensive lineman. The analyst takes a random sample of 150 offensive linemen from division 1 college football teams.
Population of interest: all d1 offensive linemen.
Sample: the 150 offensive linemen chosen.
500
Identify the variables and list their units of measure.
variables: year (years from 1875-2018), winner (no units), jockey (no units), trainer (no units), owner (no units), time (minutes and seconds)
500
Give an example of 4 variables we could measure in this class and list the units we might use to measure them, if there are any.
multiple correct
500
Identify the who, what, when, where, why, and how of the following:
who: patients
what: treatment and cold severity
when: is not listed
where: is not listed
why: to test the effectiveness of herbal medicine
how: set up an experiment with the herbal medicine and a placebo