Question 1

Jersey numbers of soccer players is an example of a(n) ___________ variable.

Accepted Answer

A)  Nominative
B)  Ordinal
C)  Interval
D)  RatioE) A) and D)
F) A) and B)

Question 2

The two types of quantitative variables are:

Accepted Answer

A)  Ordinal and ratio
B)  Interval and ordinal
C)  Nominative and ordinal
D)  Interval and ratio
E)  Nominative and intervalF) A) and E)
G) B) and E)

Question 3

Statistical inference is the science of using a sample of measurements to make generalization about the important aspects of a population of measurements.

Accepted Answer

A) True 
 B)False

Question 4

By taking a systematic sample,in which we select every 100th shopper arriving at a specific store,we are approximating a random sample of shoppers.

Accepted Answer

A) True 
 B)False

Question 5

Statistical methods help to:

Accepted Answer

A)  Demonstrate the need for improvement
B)  Identify ways to make improvements
C)  Assess whether or not improvement activities have been successful
D)  Estimate the benefits of improvement
E)  All of the aboveF) C) and E)
G) B) and D)

Question 6

In order to improve the quality of products and services,we must remove the root causes of process _____.

Accepted Answer

A)  inference
B)  variation
C)  capability
D)  changesE) A) and B)
F) All of the above B

Question 7

Ratio variables have the following characteristics:

Accepted Answer

A)  Meaningful order
B)  An inherently defined zero value
C)  Categorical in nature
D)  PredictableE) B) and C)
F) A) and D) B

Question 8

If a unit is placed back into the population after being selected for a sample,we are sampling _____.

Accepted Answer

A)  without replacement
B)  during replacement
C)  with replacement
D)  consistentlyE) B) and C)
F) A) and C)

Question 9

An identification of police officers by rank would represent a(n) ____________ level of measurement.

Accepted Answer

A)  Nominative
B)  Ordinal
C)  Interval
D)  RatioE) None of the above
F) B) and D)

Question 10

Weights of items obtained using a well-adjusted scale represents a(n) _____________ level of measurement.

Accepted Answer

A)  Nominative
B)  Ordinal
C)  Interval
D)  RatioE) B) and C)
F) A) and D)

Question 11

A process is in statistical control if it does not exhibit any unusual variations.

Accepted Answer

A) True 
 B)False

Question 12

A(n) ___________________ variable is a qualitative variable such that there is no meaningful ordering or ranking of the categories.

Accepted Answer

A)  Ratio
B)  Ordinal
C)  Nominative
D)  IntervalE) All of the above
F) None of the above

Question 13

A _____ is a list of all the units in a population.

Accepted Answer

A)  census
B)  frame
C)  sample
D)  variableE) A) and D)
F) None of the above

Question 14

Measurements from a population are called

Accepted Answer

A)  Statistics
B)  Observations
C)  Variables
D)  ProcessesE) None of the above
F) B) and D)

Question 15

If we examine some of the population measurements,we are conducting a census of the population.

Accepted Answer

A) True 
 B)False

Question 16

The change in daily price of a stock is what type of variable?

Accepted Answer

A)  Qualitative
B)  Ordinal
C)  Random
D)  QuantitativeE) B) and C)
F) C) and D)

Question 17

Any characteristic of a population unit is a(n) :

Accepted Answer

A)  Measurement
B)  Sample
C)  Observation
D)  VariableE) A) and D)
F) All of the above D

Question 18

A ____ is a display of individual process measurements versus time.

Accepted Answer

A)  runs plot
B)  statistical analysis
C)  random sample
D)  measurementE) A) and C)
F) C) and D)

Question 19

In a voluntary response sample,what types of opinions are usually expressed?

Accepted Answer

A)  Impartial
B)  Random
C)  Strong
D)  Cross-sectionalE) None of the above
F) A) and D)

Question 20

Statistical _____ refers to using a sample of measurements making generalizations about the important aspects of a population.

Accepted Answer

A)  sampling
B)  process control
C)  analysis
D)  inferenceE) B) and D)
F) None of the above

Exam 1: An Introduction to Business Statistics

Jersey numbers of soccer players is an example of a(n) ___________ variable.

Correct AnswerverifiedShow Answer

The two types of quantitative variables are:

Correct AnswerverifiedShow Answer

Statistical inference is the science of using a sample of measurements to make generalization about the important aspects of a population of measurements.

Correct AnswerverifiedShow Answer

By taking a systematic sample,in which we select every 100th shopper arriving at a specific store,we are approximating a random sample of shoppers.

Correct AnswerverifiedShow Answer

Statistical methods help to:

Correct AnswerverifiedShow Answer

In order to improve the quality of products and services,we must remove the root causes of process _____.

Correct AnswerverifiedB

Ratio variables have the following characteristics:

Correct AnswerverifiedB

If a unit is placed back into the population after being selected for a sample,we are sampling _____.

Correct AnswerverifiedShow Answer

An identification of police officers by rank would represent a(n) ____________ level of measurement.

Correct AnswerverifiedShow Answer

Weights of items obtained using a well-adjusted scale represents a(n) _____________ level of measurement.

Correct AnswerverifiedShow Answer

A process is in statistical control if it does not exhibit any unusual variations.

Correct AnswerverifiedShow Answer

A(n) ___________________ variable is a qualitative variable such that there is no meaningful ordering or ranking of the categories.

Correct AnswerverifiedShow Answer

A _____ is a list of all the units in a population.

Correct AnswerverifiedShow Answer

Measurements from a population are called

Correct AnswerverifiedShow Answer

If we examine some of the population measurements,we are conducting a census of the population.

Correct AnswerverifiedShow Answer

The change in daily price of a stock is what type of variable?

Correct AnswerverifiedShow Answer

Any characteristic of a population unit is a(n) :

Correct AnswerverifiedD

A ____ is a display of individual process measurements versus time.

Correct AnswerverifiedShow Answer

In a voluntary response sample,what types of opinions are usually expressed?

Correct AnswerverifiedShow Answer

Statistical _____ refers to using a sample of measurements making generalizations about the important aspects of a population.

Correct AnswerverifiedShow Answer

Correct Answer
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By taking a systematic sample,in which we select every 100^th shopper arriving at a specific store,we are approximating a random sample of shoppers.

Correct Answer
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B

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B

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D

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