Question 1

One advantage of a stem and leaf plot over a frequency distribution is that the values of the original data are retained.

Accepted Answer

A) True 
 B)False  True

Question 2

The staff of Mr.Wayne Wertz,VP of Operations at Portland Peoples Bank,prepared a cumulative frequency ogive of waiting time for walk-in customers.   The total number of walk-in customers included in the study was ___.

Accepted Answer

A) 100 
B) 250 
C) 300 
D) 450 
E) 500 
A) 100 
B) 250 
C) 300 
D) 450 
E) 500 D

Question 3

Abel Alonzo,Director of Human Resources,is exploring employee absenteeism at the Harrison Haulers Plant during the last operating year.A review of all personnel records indicated that absences ranged from zero to twenty-nine days per employee.The following class intervals were proposed for a frequency distribution of absences:  
Which of the following might represent a problem with this set of intervals?

Accepted Answer

A) There are too few intervals. 
B) Some numbers between 0 and 29 would not fall into any interval. 
C) The first and second interval overlaps. 
D) There are too many intervals. 
E) The second and the third interval overlap. 
A) There are too few intervals. 
B) Some numbers between 0 and 29 would not fall into any interval. 
C) The first and second interval overlaps. 
D) There are too many intervals. 
E) The second and the third interval overlap. A

Question 4

The staff of Mr.Wayne Wertz,VP of Operations at Portland Peoples Bank,prepared a cumulative frequency ogive of waiting time for walk-in customers.   The percentage of walk-in customers waiting one minute or less was ___.

Accepted Answer

A) 22% 
B) 11% 
C) 67% 
D) 10% 
E) 5% 
A) 22% 
B) 11% 
C) 67% 
D) 10% 
E) 5%

Question 5

The following class intervals for a frequency distribution were developed to provide information regarding the starting salaries for students graduating from a particular school: 
 
Before data was collected,someone questioned the validity of this arrangement.Which of the following represents a problem with this set of intervals?

Accepted Answer

A) There are too many intervals. 
B) The class widths are too small. 
C) Some numbers between 18,000 and 30,000 would not fall into any of these intervals. 
D) The first and the second interval overlap. 
E) There are too few intervals. 
A) There are too many intervals. 
B) The class widths are too small. 
C) Some numbers between 18,000 and 30,000 would not fall into any of these intervals. 
D) The first and the second interval overlap. 
E) There are too few intervals.

Question 6

The number of phone calls arriving at a switchboard each hour has been recorded,and the following frequency distribution has been developed:  
What is the midpoint of the last class?

Accepted Answer

A) 80 
B) 100 
C) 95 
D) 90 
E) 85 
A) 80 
B) 100 
C) 95 
D) 90 
E) 85

Question 7

The staff of Ms.Tamara Hill,VP of Technical Analysis at Blue Sky Brokerage,prepared a frequency histogram of market capitalization of the 937 corporations listed on the American Stock Exchange in January 2003.   Approximately ___ corporations had capitalization exceeding $200,000,000.

Accepted Answer

A) 50 
B) 100 
C) 700 
D) 800 
E) 890 
A) 50 
B) 100 
C) 700 
D) 800 
E) 890

Question 8

Consider the following stem and leaf plot:  
Suppose that a frequency distribution was developed from this,and there were 5 classes (10-under 20,20-under 30,etc. ).What would be the relative frequency of the class 20-under 30?

Accepted Answer

A) 0.4 
B) 0.25 
C) 0.20 
D) 4 
E) 0.50 
A) 0.4 
B) 0.25 
C) 0.20 
D) 4 
E) 0.50

Question 9

Consider the following frequency distribution:  
What is the cumulative frequency of the second class interval?

Accepted Answer

A) 25 
B) 40 
C) 15 
D) 50 
A) 25 
B) 40 
C) 15 
D) 50

Question 10

A summary of data in which raw data are grouped into different intervals and the number of items in each group is listed is called a frequency distribution.

Accepted Answer

A) True 
 B)False

Question 11

The 1999 and 2000 market share data of the three competitors (A,B,and C)in an oligopolistic industry are presented in the following pie charts:   Which of the following is true?

Accepted Answer

A) Only company B gained market share. 
B) Only company C lost market share. 
C) Company A lost market share. 
D) Company B lost market share. 
E) All companies lost market share. 
A) Only company B gained market share. 
B) Only company C lost market share. 
C) Company A lost market share. 
D) Company B lost market share. 
E) All companies lost market share.

Question 12

Each day,the office staff at Oasis Quick Shop prepares a frequency distribution and a histogram of sales transactions by dollar value of the transactions.Friday's histogram follows:   On Friday,the approximate number of sales transactions between $100 and $150 was ___.

Accepted Answer

A) 100 
B) 200 
C) 300 
D) 400 
E) 500 
A) 100 
B) 200 
C) 300 
D) 400 
E) 500

Question 13

Pinky Bauer,Chief Financial Officer of Harrison Haulers,Inc. ,suspects irregularities in the payroll system,and orders an inspection of "each and every payroll voucher issued since January 1,2000." Each payroll voucher was inspected and the following frequency distribution was compiled.  
The cumulative frequency of the second class interval is ___.

Accepted Answer

A) 1,500 
B) 500 
C) 900 
D) 1,000 
E) 1,200 
A) 1,500 
B) 500 
C) 900 
D) 1,000 
E) 1,200

Question 14

Each day,the office staff at Oasis Quick Shop prepares a frequency distribution and an ogive of sales transactions by dollar value of the transactions.Saturday's cumulative frequency ogive follows:   The total number of sales transactions on Saturday was ___.

Accepted Answer

A) 200 
B) 500 
C) 300 
D) 100 
E) 400 
A) 200 
B) 500 
C) 300 
D) 100 
E) 400

Question 15

Display and analyze two variables simultaneously using cross tabulation and scatter plots.

Accepted Answer

Cross tabulation is a process for produc

Question 16

A frequency distribution was developed.The lower endpoint of the first class is 9.30,and the midpoint is 9.35.What is the upper endpoint of this class?

Accepted Answer

A) 9.50 
B) 9.60 
C) 9.70 
D) 9.40 
E) 9.80 
A) 9.50 
B) 9.60 
C) 9.70 
D) 9.40 
E) 9.80

Question 17

Consider the following frequency distribution: 
 
What is the midpoint of the first class?

Accepted Answer

A) 10 
B) 20 
C) 15 
D) 30 
E) 40 
A) 10 
B) 20 
C) 15 
D) 30 
E) 40

Question 18

In a histogram,the tallest bar represents the class with the highest cumulative frequency.

Accepted Answer

A) True 
 B)False

Question 19

The following graphic of residential housing data (selling price and size in square feet)is a ___.

Accepted Answer

A) scatter plot 
B) Pareto chart 
C) pie chart 
D) cumulative histogram 
E) cumulative frequency distribution 
A) scatter plot 
B) Pareto chart 
C) pie chart 
D) cumulative histogram 
E) cumulative frequency distribution

Question 20

The 1999 and 2000 market share data of the three competitors (A,B,and C)in an oligopolistic industry are presented in the following pie charts: Which of the following may be a false statement?

Accepted Answer

A) Sales revenues declined at company C. 
B) Only company C lost market share. 
C) Company A gained market share. 
D) Company B gained market share. 
E) Both Company A and Company B gained market share. 
A) Sales revenues declined at company C. 
B) Only company C lost market share. 
C) Company A gained market share. 
D) Company B gained market share. 
E) Both Company A and Company B gained market share.

One advantage of a stem and leaf plot over a frequency distribution is that the values of the original data are retained.

The staff of Mr.Wayne Wertz,VP of Operations at Portland Peoples Bank,prepared a cumulative frequency ogive of waiting time for walk-in customers. The total number of walk-in customers included in the study was ___.

The staff of Mr.Wayne Wertz,VP of Operations at Portland Peoples Bank,prepared a cumulative frequency ogive of waiting time for walk-in customers. The percentage of walk-in customers waiting one minute or less was ___.

The number of phone calls arriving at a switchboard each hour has been recorded,and the following frequency distribution has been developed: What is the midpoint of the last class?

The staff of Ms.Tamara Hill,VP of Technical Analysis at Blue Sky Brokerage,prepared a frequency histogram of market capitalization of the 937 corporations listed on the American Stock Exchange in January 2003. Approximately ___ corporations had capitalization exceeding $200,000,000.

Consider the following stem and leaf plot: Suppose that a frequency distribution was developed from this,and there were 5 classes (10-under 20,20-under 30,etc. ).What would be the relative frequency of the class 20-under 30?

Consider the following frequency distribution: What is the cumulative frequency of the second class interval?

A summary of data in which raw data are grouped into different intervals and the number of items in each group is listed is called a frequency distribution.

The 1999 and 2000 market share data of the three competitors (A,B,and C)in an oligopolistic industry are presented in the following pie charts: Which of the following is true?

Each day,the office staff at Oasis Quick Shop prepares a frequency distribution and a histogram of sales transactions by dollar value of the transactions.Friday's histogram follows: On Friday,the approximate number of sales transactions between $100 and $150 was ___.

Each day,the office staff at Oasis Quick Shop prepares a frequency distribution and an ogive of sales transactions by dollar value of the transactions.Saturday's cumulative frequency ogive follows: The total number of sales transactions on Saturday was ___.

Display and analyze two variables simultaneously using cross tabulation and scatter plots.

A frequency distribution was developed.The lower endpoint of the first class is 9.30,and the midpoint is 9.35.What is the upper endpoint of this class?

Consider the following frequency distribution: What is the midpoint of the first class?

In a histogram,the tallest bar represents the class with the highest cumulative frequency.

The following graphic of residential housing data (selling price and size in square feet)is a ___.

The 1999 and 2000 market share data of the three competitors (A,B,and C)in an oligopolistic industry are presented in the following pie charts: Which of the following may be a false statement?

Introduction to Statistics

Descriptive Statistics

Probability

Discrete Distributions

Continuous Distributions

Sampling and Sampling Distributions

Statistical Inference: Estimation for Single Populations

Statistical Inference: Hypothesis Testing for Single Populations

Statistical Inferences About Two Populations

Analysis of Variance and Design of Experiments

Simple Regression Analysis and Correlation

Multiple Regression Analysis

Building Multiple Regression Models

Time-Series Forecasting and Index Numbers

Analysis of Categorical Data

Nonparametric Statistics

Statistical Quality Control

Decision Analysis

Filters

Exam 2: Charts and Graphs

One advantage of a stem and leaf plot over a frequency distribution is that the values of the original data are retained.

The staff of Mr.Wayne Wertz,VP of Operations at Portland Peoples Bank,prepared a cumulative frequency ogive of waiting time for walk-in customers. The total number of walk-in customers included in the study was ___.

The staff of Mr.Wayne Wertz,VP of Operations at Portland Peoples Bank,prepared a cumulative frequency ogive of waiting time for walk-in customers. The percentage of walk-in customers waiting one minute or less was ___.

The number of phone calls arriving at a switchboard each hour has been recorded,and the following frequency distribution has been developed: What is the midpoint of the last class?

The staff of Ms.Tamara Hill,VP of Technical Analysis at Blue Sky Brokerage,prepared a frequency histogram of market capitalization of the 937 corporations listed on the American Stock Exchange in January 2003. Approximately ___ corporations had capitalization exceeding $200,000,000.

Consider the following stem and leaf plot: Suppose that a frequency distribution was developed from this,and there were 5 classes (10-under 20,20-under 30,etc. ).What would be the relative frequency of the class 20-under 30?

Consider the following frequency distribution: What is the cumulative frequency of the second class interval?

A summary of data in which raw data are grouped into different intervals and the number of items in each group is listed is called a frequency distribution.

The 1999 and 2000 market share data of the three competitors (A,B,and C)in an oligopolistic industry are presented in the following pie charts: Which of the following is true?

Each day,the office staff at Oasis Quick Shop prepares a frequency distribution and a histogram of sales transactions by dollar value of the transactions.Friday's histogram follows: On Friday,the approximate number of sales transactions between $100 and $150 was ___.

Each day,the office staff at Oasis Quick Shop prepares a frequency distribution and an ogive of sales transactions by dollar value of the transactions.Saturday's cumulative frequency ogive follows: The total number of sales transactions on Saturday was ___.

Display and analyze two variables simultaneously using cross tabulation and scatter plots.

A frequency distribution was developed.The lower endpoint of the first class is 9.30,and the midpoint is 9.35.What is the upper endpoint of this class?

Consider the following frequency distribution: What is the midpoint of the first class?

In a histogram,the tallest bar represents the class with the highest cumulative frequency.

The following graphic of residential housing data (selling price and size in square feet)is a ___.

The 1999 and 2000 market share data of the three competitors (A,B,and C)in an oligopolistic industry are presented in the following pie charts: Which of the following may be a false statement?

Introduction to Statistics

Descriptive Statistics

Probability

Discrete Distributions

Continuous Distributions

Sampling and Sampling Distributions

Statistical Inference: Estimation for Single Populations

Statistical Inference: Hypothesis Testing for Single Populations

Statistical Inferences About Two Populations

Analysis of Variance and Design of Experiments

Simple Regression Analysis and Correlation

Multiple Regression Analysis

Building Multiple Regression Models

Time-Series Forecasting and Index Numbers

Analysis of Categorical Data

Nonparametric Statistics

Statistical Quality Control

Decision Analysis

Filters