Question 1

Using Microsoft Excel 2010,the function that computes the most frequently occurring values of a set of data is ________.

Accepted Answer

A) MODE.SNGL(data range) 
B) MEDIAN(data range) 
C) STDEV.P(data range) 
D) MODE.MULT(data range) 
A) MODE.SNGL(data range) 
B) MEDIAN(data range) 
C) STDEV.P(data range) 
D) MODE.MULT(data range)

Question 2

All of the following are examples of measures of dispersion except ________.

Accepted Answer

A) range 
B) variance 
C) standard deviation 
D) mode 
A) range 
B) variance 
C) standard deviation 
D) mode

Question 3

The population variance is denoted as ________.

Accepted Answer

A) s2 
B) v2 
C) σ2 
D) α2 
A) s2 
B) v2 
C) σ2 
D) α2

Question 4

The higher the kurtosis,the more area the histogram has in the middle rather than in the tails.

Accepted Answer

A) True 
 B)False

Question 5

A distribution that is relatively peaked with a low degree of dispersion has a coefficient of kurtosis that is ________.

Accepted Answer

A) equal to 0 
B) less than 0 
C) more than 3 
D) equal to 3 
A) equal to 0 
B) less than 0 
C) more than 3 
D) equal to 3

Question 6

In a box plot,the outer boundaries of the box represent the ________.

Accepted Answer

A) interquartile range 
B) median and mode 
C) minimum and maximum 
D) outlier values 
A) interquartile range 
B) median and mode 
C) minimum and maximum 
D) outlier values

Question 7

________ is the quartile representing the 25th percentile.

Accepted Answer

A) Q1 
B) Q2 
C) Q3 
D) Q4 
A) Q1 
B) Q2 
C) Q3 
D) Q4

Question 8

For a negatively skewed distribution,the mode is greater than the median,which is greater than the mean.

Accepted Answer

A) True 
 B)False

Question 9

Use the table below to answer the following question(s).The table shows the crude oil prices in dollars per barrel,for 2007.  
-Calculate the mean price of crude oil in 2007.

Accepted Answer

The answer of Use the table below to answer the...

Question 10

The sum of relative frequencies must equal 100.

Accepted Answer

A) True 
 B)False

Question 11

The degree of variation in or the numerical spread of the data is known as ________.

Accepted Answer

A) quartile 
B) median 
C) dispersion 
D) mean 
A) quartile 
B) median 
C) dispersion 
D) mean

Question 12

Using Chebyshev's theorem,k = 3 means that ________.

Accepted Answer

A) at least two-thirds of the data lie within three standard deviations of the mean 
B) at least 89% of the data lie within three standard deviations of the mean 
C) less than 29% of the data lie within three standard deviations of the mean 
D) at least three-fourths of the data lie within two standard deviations of the mean 
A) at least two-thirds of the data lie within three standard deviations of the mean 
B) at least 89% of the data lie within three standard deviations of the mean 
C) less than 29% of the data lie within three standard deviations of the mean 
D) at least three-fourths of the data lie within two standard deviations of the mean

Question 13

Outliers defined as being more than 3*IQR away from Q1 and Q3 are considered ________.

Accepted Answer

A) mild 
B) extreme 
C) weak 
D) irrelevant 
A) mild 
B) extreme 
C) weak 
D) irrelevant

Question 14

A distribution that is relatively flat with a wide degree of dispersion has a coefficient of kurtosis that is ________.

Accepted Answer

A) more than 3 
B) less than 3 
C) less than 6 
D) more than 6 
A) more than 3 
B) less than 3 
C) less than 6 
D) more than 6

Question 15

In Microsoft Excel 2010,the function that computes the standard deviation of a set of data,assumed to be a sample,is ________.

Accepted Answer

A) STDEV.P(data range) 
B) MODE.SNGL(data range) 
C) STAND.MULT(data range) 
D) STDEV.S(data range) 
A) STDEV.P(data range) 
B) MODE.SNGL(data range) 
C) STAND.MULT(data range) 
D) STDEV.S(data range)

Question 16

The population mean is represented by ________.

Accepted Answer

A) α 
B) μ 
C) λ 
D) π 
A) α 
B) μ 
C) λ 
D) π

Question 17

Which of the following can be used to represent dispersion in a data set?

Accepted Answer

A) proportion 
B) range 
C) mode 
D) median 
A) proportion 
B) range 
C) mode 
D) median

Question 18

The square root of the variance is called the ________.

Accepted Answer

A) mean 
B) standard deviation 
C) median 
D) interquartile range 
A) mean 
B) standard deviation 
C) median 
D) interquartile range

Question 19

Sketch a negatively skewed distribution.

Accepted Answer

The answer of Sketch a negatively skewed distribution....

Question 20

Which of the following is included in the empirical rules?

Accepted Answer

A) Approximately 59% of the observations will fall within two standard deviations of the mean,or within x ± 2s. 
B) Approximately 68% of the observations will fall within one standard deviation of the mean,or between x - s and x + s. 
C) Approximately 89% of the observations will fall within three standard deviations of the mean,or within x ± 3s. 
D) Approximately 28% of the observations will fall within three standard deviations of the mean,or within x ± 3s. 
A) Approximately 59% of the observations will fall within two standard deviations of the mean,or within x ± 2s. 
B) Approximately 68% of the observations will fall within one standard deviation of the mean,or between x - s and x + s. 
C) Approximately 89% of the observations will fall within three standard deviations of the mean,or within x ± 3s. 
D) Approximately 28% of the observations will fall within three standard deviations of the mean,or within x ± 3s.

Using Microsoft Excel 2010,the function that computes the most frequently occurring values of a set of data is ________.

All of the following are examples of measures of dispersion except ________.

The population variance is denoted as ________.

The higher the kurtosis,the more area the histogram has in the middle rather than in the tails.

A distribution that is relatively peaked with a low degree of dispersion has a coefficient of kurtosis that is ________.

In a box plot,the outer boundaries of the box represent the ________.

________ is the quartile representing the 25^th percentile.

For a negatively skewed distribution,the mode is greater than the median,which is greater than the mean.

Use the table below to answer the following question(s).The table shows the crude oil prices in dollars per barrel,for 2007. -Calculate the mean price of crude oil in 2007.

The sum of relative frequencies must equal 100.

The degree of variation in or the numerical spread of the data is known as ________.

Using Chebyshev's theorem,k = 3 means that ________.

Outliers defined as being more than 3*IQR away from Q₁ and Q₃ are considered ________.

A distribution that is relatively flat with a wide degree of dispersion has a coefficient of kurtosis that is ________.

In Microsoft Excel 2010,the function that computes the standard deviation of a set of data,assumed to be a sample,is ________.

The population mean is represented by ________.

Which of the following can be used to represent dispersion in a data set?

The square root of the variance is called the ________.

Sketch a negatively skewed distribution.

Which of the following is included in the empirical rules?

Data and Business Decisions

Probability Concepts and Distributions

Sampling and Estimation

Hypothesis Testing and Statistical Inference

Regression Analysis

Forecasting

Introduction to Statistical Quality Control

Building and Using Decision Models

Decision Models With Uncertainty and Risk

Decisions, uncertainty, and Risk

Queues and Process Simulation Modeling

Linear Optimization

Integer, nonlinear, and Advanced Optimization Methods

Filters

Exam 2: Descriptive Statistics and Data Analysis

Using Microsoft Excel 2010,the function that computes the most frequently occurring values of a set of data is ________.

All of the following are examples of measures of dispersion except ________.

The population variance is denoted as ________.

The higher the kurtosis,the more area the histogram has in the middle rather than in the tails.

A distribution that is relatively peaked with a low degree of dispersion has a coefficient of kurtosis that is ________.

In a box plot,the outer boundaries of the box represent the ________.

________ is the quartile representing the 25th percentile.

For a negatively skewed distribution,the mode is greater than the median,which is greater than the mean.

Use the table below to answer the following question(s).The table shows the crude oil prices in dollars per barrel,for 2007. -Calculate the mean price of crude oil in 2007.

The sum of relative frequencies must equal 100.

The degree of variation in or the numerical spread of the data is known as ________.

Using Chebyshev's theorem,k = 3 means that ________.

Outliers defined as being more than 3*IQR away from Q1 and Q3 are considered ________.

A distribution that is relatively flat with a wide degree of dispersion has a coefficient of kurtosis that is ________.

In Microsoft Excel 2010,the function that computes the standard deviation of a set of data,assumed to be a sample,is ________.

The population mean is represented by ________.

Which of the following can be used to represent dispersion in a data set?

The square root of the variance is called the ________.

Sketch a negatively skewed distribution.

Which of the following is included in the empirical rules?

Data and Business Decisions

Probability Concepts and Distributions

Sampling and Estimation

Hypothesis Testing and Statistical Inference

Regression Analysis

Forecasting

Introduction to Statistical Quality Control

Building and Using Decision Models

Decision Models With Uncertainty and Risk

Decisions, uncertainty, and Risk

Queues and Process Simulation Modeling

Linear Optimization

Integer, nonlinear, and Advanced Optimization Methods

Filters

________ is the quartile representing the 25^th percentile.

Outliers defined as being more than 3*IQR away from Q₁ and Q₃ are considered ________.