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QNT 275 Week 1 Practice: Connect Knowledge Check
Complete the Week 1 Knowledge Check in Connect.
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1.
Daily temperature in a local community collected over a 30-day time period is an example of cross-sectional data.
True
False
2.
Time series data are data collected at the same time period.
True
False
3.
Primary data are data collected by an individual.
True
False
4.
A random sample is selected so that every element in the population has the same chance of being included in the sample.
True
False
5.
__ consists of a set of concepts and techniques that are used to describe populations and samples.
Data mining
Traditional statistics
Random sampling
Time series analysis
6.
A sequence of operations that takes inputs and turns them into outputs is a __.
statistical inference
process
random sampling
runs plot
7.
Processes produce outputs over time.
True
False
8.
_ uses traditional or newer graphics to present visual summaries of business information.
Data mining
Descriptive analytics
Predictive analytics
Association learning
9.
The number of sick days taken by employees in 2008 for the top 10 technology companies is an example of time series data.
True
False
10.
A population is a set of existing units.
True
False
11.
A(n) _ variable is a qualitative variable such that there is no meaningful ordering or ranking of the categories.
interval
ordinal
ratio
nominative
12.
Judgment sampling occurs when a person who is extremely knowledgeable about the population under consideration selects the population element(s) that they feel is(are) most representative of the population.
True
False
A population is a set of existing units.
True
False
Processes produce outputs over time.
True
False
Primary data are data collected by an individual.
True
False
It is possible to use a random sample from a population to make statistical inferences about the entire population.
True
False
The term big data was derived from the use of survey data.
True
False
_ uses traditional or newer graphics to present visual summaries of business information.
Predictive analytics
Data mining
Descriptive analytics
Association learning
An example of a qualitative variable is the mileage of a car.
True
False
Any characteristic of an element is called a __.
process
set
variable
D)census
A sequence of operations that takes inputs and turns them into outputs is a __.
random sampling
statistical inference
process
runs plot
Daily temperature in a local community collected over a 30-day time period is an example of cross-sectional data.
True
False
An example of a quantitative variable is the manufacturer of a car.
True
False
Cross-sectional data are data collected at the same point in time.
True
False
