Question 1

The types of variables called _______________ are summarized in a contingency table.

Accepted Answer

nominal or

Question 2

A dot plot is an easy way to represent the relationship between two variables.

Accepted Answer

A) True 
 B)False

Question 3

A large oil company is studying the number of gallons of gasoline purchased per customer at self-service pumps. The mean number of gallons is 10.0, with a standard deviation of 3.0 gallons. The median is 10.75 gallons. What is Pearson's coefficient of skewness in this instance?

Accepted Answer

A)  -1.00 
B)  -0.75 
C)  +0.75 
D)  +1.00 
A)  -1.00 
B)  -0.75 
C)  +0.75 
D)  +1.00

Question 4

In a scatter diagram, we describe the relationship between __________.

Accepted Answer

A)  Two variables measured at the ordinal level 
B)  Two variables, one measured as an ordinal variable and the other as a ratio variable 
C)  Two variables measured at the interval or ratio level 
D)  A variable measure on the interval or ratio level and time 
A)  Two variables measured at the ordinal level 
B)  Two variables, one measured as an ordinal variable and the other as a ratio variable 
C)  Two variables measured at the interval or ratio level 
D)  A variable measure on the interval or ratio level and time

Question 5

What is the common purpose of a dot plot and a box plot?

Accepted Answer

Both are used to ill

Question 6

In the following set of data:   what are the first, second, and third quartiles?

Accepted Answer

A)  1, 6, and 100 
B)  3, 5, and 9 
C)  3, 6, and 9 
D)  1, 5, and 100 
A)  1, 6, and 100 
B)  3, 5, and 9 
C)  3, 6, and 9 
D)  1, 5, and 100

Question 7

A box plot shows the skewness of a distribution.

Accepted Answer

A) True 
 B)False

Question 8

In a negatively skewed distribution, the coefficient of skewness is ______________.

Accepted Answer

negative o

Question 9

A relationship between two nominal variables is summarized by a contingency table.

Accepted Answer

A) True 
 B)False

Question 10

For the following data, find the information required to construct a box plot.

Accepted Answer

Minimum = 1; 1^st quartile is 6.5; the medi

Question 11

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 19 hours.   For the distribution of number of sales per hour, what is the interquartile range?

Accepted Answer

3
Explanation: Sort the data from minimu

Question 12

In a stem-and-leaf display, the leaf represents a class of a frequency distribution.

Accepted Answer

A) True 
 B)False

Question 13

In a contingency table, we describe the relationship between ________.

Accepted Answer

A)  Two variables measured at the ordinal or nominal level 
B)  Two variables, one measured as an ordinal variable and the other as a ratio variable 
C)  Two variables measured at the interval or ratio level 
D)  A variable measure on the interval or ratio level and time 
A)  Two variables measured at the ordinal or nominal level 
B)  Two variables, one measured as an ordinal variable and the other as a ratio variable 
C)  Two variables measured at the interval or ratio level 
D)  A variable measure on the interval or ratio level and time

Question 14

A box plot graphically shows the 10th and 90th percentiles.

Accepted Answer

A) True 
 B)False

Question 15

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
How often did the company ship 111 boats in a week?

Accepted Answer

The answer of The following stem-and-leaf display reports the number...

Question 16

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 20 hours. Draw a dot plot for the data.

Accepted Answer

@#IMG-DLM& Explanation: For each value,

Question 17

The median of a sample will always equal the:

Accepted Answer

A)  mode. 
B)  mean. 
C)  50th percentile. 
D)  All of these are correct. 
A)  mode. 
B)  mean. 
C)  50th percentile. 
D)  All of these are correct.

Question 18

Quartiles divide a distribution into 10 equal parts.

Accepted Answer

A) True 
 B)False

Question 19

In a symmetric distribution, is the 99th percentile is located in the ________ tail.

Accepted Answer

Question 20

A __________ clearly shows outliers.

Accepted Answer

The answer of A __________ clearly shows outliers....

The types of variables called _______________ are summarized in a contingency table.

A dot plot is an easy way to represent the relationship between two variables.

A large oil company is studying the number of gallons of gasoline purchased per customer at self-service pumps. The mean number of gallons is 10.0, with a standard deviation of 3.0 gallons. The median is 10.75 gallons. What is Pearson's coefficient of skewness in this instance?

In a scatter diagram, we describe the relationship between __________.

What is the common purpose of a dot plot and a box plot?

In the following set of data: what are the first, second, and third quartiles?

A box plot shows the skewness of a distribution.

In a negatively skewed distribution, the coefficient of skewness is ______________.

A relationship between two nominal variables is summarized by a contingency table.

For the following data, find the information required to construct a box plot.

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 19 hours. For the distribution of number of sales per hour, what is the interquartile range?

In a stem-and-leaf display, the leaf represents a class of a frequency distribution.

In a contingency table, we describe the relationship between ________.

A box plot graphically shows the 10^th and 90^th percentiles.

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 How often did the company ship 111 boats in a week?

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 20 hours. Draw a dot plot for the data.

The median of a sample will always equal the:

Quartiles divide a distribution into 10 equal parts.

In a symmetric distribution, is the 99^th percentile is located in the ________ tail.

A __________ clearly shows outliers.

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

The types of variables called _______________ are summarized in a contingency table.

A dot plot is an easy way to represent the relationship between two variables.

A large oil company is studying the number of gallons of gasoline purchased per customer at self-service pumps. The mean number of gallons is 10.0, with a standard deviation of 3.0 gallons. The median is 10.75 gallons. What is Pearson's coefficient of skewness in this instance?

In a scatter diagram, we describe the relationship between __________.

What is the common purpose of a dot plot and a box plot?

In the following set of data: what are the first, second, and third quartiles?

A box plot shows the skewness of a distribution.

In a negatively skewed distribution, the coefficient of skewness is ______________.

A relationship between two nominal variables is summarized by a contingency table.

For the following data, find the information required to construct a box plot.

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 19 hours. For the distribution of number of sales per hour, what is the interquartile range?

In a stem-and-leaf display, the leaf represents a class of a frequency distribution.

In a contingency table, we describe the relationship between ________.

A box plot graphically shows the 10th and 90th percentiles.

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 How often did the company ship 111 boats in a week?

A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 20 hours. Draw a dot plot for the data.

The median of a sample will always equal the:

Quartiles divide a distribution into 10 equal parts.

In a symmetric distribution, is the 99th percentile is located in the ________ tail.

A __________ clearly shows outliers.

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

A box plot graphically shows the 10^th and 90^th percentiles.

In a symmetric distribution, is the 99^th percentile is located in the ________ tail.