statistical analysis i 0

Question 1 of 20
5.0 Points
When TV advertisements report that “2 out of 3 dentists surveyed indicated they would recommend Brand X toothpaste to their patients,” an informed consumer may question the conclusion because:

A. the results were incorrectly computed.  
B. dentists were not really surveyed.  
C. the conclusion does not include the total number of dentists surveyed.  
D. the conclusion is not illustrated with a graph.  

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Question 2 of 20
5.0 Points
The main purpose of descriptive statistics is to:

A. summarize data in a useful and informative manner.  
B. make inferences about a population.  
C. determine if the data adequately represents the population.  
D. gather or collect data.  

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Question 3 of 20
5.0 Points
A poll of 1,000 voters used to predict the outcome of a statewide election is an example of:

A. descriptive statistics.  
B. continuous variable measurement.  
C. statistical inference.  
D. deductive statistics.  

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Question 4 of 20
5.0 Points
The number of fishing boats shipped from a manufacturer to a dealer each month is described as a:

A. random variable.  
B. qualitative variable.  
C. discrete variable.  
D. continuous variable.  

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Question 5 of 20
5.0 Points
The kinds of numbers that can take on any value, either a fraction or integer, between specified limits are called:

A. random variables.  
B. qualitative variables.  
C. discrete variables.  
D. continuous variables.  

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Question 6 of 20
5.0 Points
Which of the following is an example of a qualitative variable?

A. Number of children in a family  
B. Weight of a person  
C. Color of ink in a pen  
D. Miles between oil changes  

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Question 7 of 20
5.0 Points
Data obtained on the preferences of different religious groups for specific types of network television programming is an example of:

A. random variables.  
B. qualitative variables.  
C. discrete variables.  
D. continuous variables.  

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Question 8 of 20
5.0 Points
__________ level data are mutually exclusive and exhaustive, and categories are scaled according to the amount of the characteristic they possess, and zero represents a point on the scale.

A. Nominal  
B. Ordinal  
C. Interval  
D. Ratio  

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Question 9 of 20
5.0 Points
A bank asks customers to evaluate the drive-through service as good, average, or poor. Which level of measurement does this classification illustrate?

A. Nominal  
B. Ordinal  
C. Interval  
D. Ratio  

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Question 10 of 20
5.0 Points
Information can be misrepresented:

A. through misleading charts and graphs.  
B. by reporting of an association of variables as causation.  
C. by presenting average data that misrepresents sample or population data.  
D. All of the above  

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Question 11 of 20
5.0 Points
The _________ level of measurement presumes that one classification is ranked higher than another.

A. nominal  
B. ordinal  
C. interval  
D. ratio  

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Question 12 of 20
5.0 Points
_________ data are usually summarized in graphs and bar charts.

A. Qualitative  
B. Quantitative  
C. Continuous  
D. Discrete  

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Question 13 of 20
5.0 Points
Data can be classified according to:

A. discrete variables.  
B. continuous variables.  
C. attributes.  
D. levels of measurement.  

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Question 14 of 20
5.0 Points
A _________ is the total collection of individuals or objects.

A. data set  
B. sample  
C. population  
D. grouping  

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Question 15 of 20
5.0 Points
An example of the _________ level of measurement is temperature.

A. nominal  
B. ordinal  
C. interval  
D. ratio  

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Question 16 of 20
5.0 Points
With the _________ level of measurement, the data are sorted into categories with no particular order to the categories.

A. nominal  
B. ordinal  
C. interval  
D. ratio  

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Question 17 of 20
5.0 Points
The _________ level is the “highest” level of measurement.

A. nominal  
B. ordinal  
 
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