Question 1

A contingency table would be used to summarize data such as ________.

Accepted Answer

A)  Company employees by gender and organizational title 
B)  Company employees by gender and age 
C)  Company employees by compensation and age 
D)  Company employees by compensation and years with the company 
A)  Company employees by gender and organizational title 
B)  Company employees by gender and age 
C)  Company employees by compensation and age 
D)  Company employees by compensation and years with the company

Question 2

Using the following statistics to describe a distribution of data, what is the interquartile range? Minimum = 10
Q1 = 25
Median = 50
Q3 = 75
Maximum = 95

Accepted Answer

A)  85 
B)  50 
C)  15 
D)  20 
A)  85 
B)  50 
C)  15 
D)  20

Question 3

For the following data, what relationship is shown in the graph?

Accepted Answer

A positive relationship betwee

Question 4

The interquartile range is the distance between ___________.

Accepted Answer

the first

Question 5

A dot plot is useful for quickly graphing frequencies in a small data set.

Accepted Answer

A) True 
 B)False

Question 6

What does the interquartile range describe?

Accepted Answer

A)  The range of the lower 50% of the observations 
B)  The range of the middle 50% of the observations 
C)  The range of the upper 50% of the observations 
D)  The ranges of the lower 25% and the upper 25% of the observations 
A)  The range of the lower 50% of the observations 
B)  The range of the middle 50% of the observations 
C)  The range of the upper 50% of the observations 
D)  The ranges of the lower 25% and the upper 25% of the observations

Question 7

Quartiles divide a distribution into four equal parts.

Accepted Answer

A) True 
 B)False

Question 8

The 67th percentile is:

Accepted Answer

A)  the value above which 67 percent of the observations occur. 
B)  a value one less than 67 percent of the observations. 
C)  the value below which 67 percent of the observations occur. 
D)  the value of the observation at the 67th location. 
A)  the value above which 67 percent of the observations occur. 
B)  a value one less than 67 percent of the observations. 
C)  the value below which 67 percent of the observations occur. 
D)  the value of the observation at the 67th location.

Question 9

For the following data, are any of the observations an outlier?

Accepted Answer

Yes, 1 is an outlier; 1 < 2.75 (6.5 - 1.

Question 10

In the following table,

Accepted Answer

A)  There are 16 observations. 
B)  There are four observations in the second class. 
C)  There are ten observations less than thirty. 
D)  There are ten observations greater than thirty. 
A)  There are 16 observations. 
B)  There are four observations in the second class. 
C)  There are ten observations less than thirty. 
D)  There are ten observations greater than thirty.

Question 11

The following stem-and-leaf display reports the number of boats shipped per week by Ottertail Boats, Inc.
11| 1 5 9
12| 0 1 2 2 6 9
13| 0 1 2 3 4 5 5 7 8 8 9
14| 2 6 8
15| 0 1 2 4 5 7 8 9
16| 1 5 7 9
List the actual values in the fourth class.

Accepted Answer

142, 146,

Question 12

A student scored in the 85th percentile on a standardized test. This means that the student scored lower than 85% of all students who took the test.

Accepted Answer

A) True 
 B)False

Question 13

For the following data, what is the interquartile range?

Accepted Answer

2.5
Explanation: Using the ranked data,

A contingency table would be used to summarize data such as ________.

Using the following statistics to describe a distribution of data, what is the interquartile range? Minimum = 10 Q1 = 25 Median = 50 Q3 = 75 Maximum = 95

For the following data, what relationship is shown in the graph?

The interquartile range is the distance between ___________.

A dot plot is useful for quickly graphing frequencies in a small data set.

What does the interquartile range describe?

Quartiles divide a distribution into four equal parts.

The 67^th percentile is:

For the following data, are any of the observations an outlier?

In the following table,

The following stem-and-leaf display reports the number of boats shipped per week by Ottertail Boats, Inc. 11| 1 5 9 12| 0 1 2 2 6 9 13| 0 1 2 3 4 5 5 7 8 8 9 14| 2 6 8 15| 0 1 2 4 5 7 8 9 16| 1 5 7 9 List the actual values in the fourth class.

A student scored in the 85^th percentile on a standardized test. This means that the student scored lower than 85% of all students who took the test.

For the following data, what is the interquartile range?

What Is Statistics

Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

Describing Data: Numerical Measures

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Nonparametric Methods: Nominal Level Hypothesis Tests

Nonparametric Methods: Analysis of Ordinal Data

Index Numbers

Time Series and Forecasting

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters

Exam 4: Describing Data: Displaying and Exploring Data

A contingency table would be used to summarize data such as ________.

Using the following statistics to describe a distribution of data, what is the interquartile range? Minimum = 10 Q1 = 25 Median = 50 Q3 = 75 Maximum = 95

For the following data, what relationship is shown in the graph?

The interquartile range is the distance between ___________.

A dot plot is useful for quickly graphing frequencies in a small data set.

What does the interquartile range describe?

Quartiles divide a distribution into four equal parts.

The 67th percentile is:

For the following data, are any of the observations an outlier?

In the following table,

The following stem-and-leaf display reports the number of boats shipped per week by Ottertail Boats, Inc. 11| 1 5 9 12| 0 1 2 2 6 9 13| 0 1 2 3 4 5 5 7 8 8 9 14| 2 6 8 15| 0 1 2 4 5 7 8 9 16| 1 5 7 9 List the actual values in the fourth class.

A student scored in the 85th percentile on a standardized test. This means that the student scored lower than 85% of all students who took the test.

For the following data, what is the interquartile range?

What Is Statistics

Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

Describing Data: Numerical Measures

A Survey of Probability Concepts

Discrete Probability Distributions

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Nonparametric Methods: Nominal Level Hypothesis Tests

Nonparametric Methods: Analysis of Ordinal Data

Index Numbers

Time Series and Forecasting

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters

The 67^th percentile is:

A student scored in the 85^th percentile on a standardized test. This means that the student scored lower than 85% of all students who took the test.