Question 1

Consider the five number summary of hourly wages ($) for a sample of advertising / promotion managers.

Accepted Answer

A) an increase in the median. 
B) an increase in the standard deviation. 
C) a decrease in the range. 
D) a decrease in the IQR. 
E) an increase in the mean. 
A) an increase in the median. 
B) an increase in the standard deviation. 
C) a decrease in the range. 
D) a decrease in the IQR. 
E) an increase in the mean. B

Question 2

Here is the five number summary for salaries of U.S.marketing managers.   The IQR is

Accepted Answer

A) $83,060. 
B) $22.057. 
C) $69,693. 
D) $77.020. 
E) $14,566. 
A) $83,060. 
B) $22.057. 
C) $69,693. 
D) $77.020. 
E) $14,566. B

Question 3

The following boxplots show monthly sales revenue figures ($ thousands) for a discount office supply company with locations in three different regions of the U.S.
(Northeast, Southeast, and West).Which of the following statements is true?   5-20 Chapter 5 Displaying and Describing Quantitative Data

Accepted Answer

A) The northeast has the lowest mean sales revenue. 
B) The southeast has the lowest median sales revenue. 
C) The west has the lowest mean sales revenue. 
D) The west has the lowest median sales revenue. 
E) None of the above. 
A) The northeast has the lowest mean sales revenue. 
B) The southeast has the lowest median sales revenue. 
C) The west has the lowest mean sales revenue. 
D) The west has the lowest median sales revenue. 
E) None of the above. B

Question 4

The following boxplots show monthly sales revenue figures ($ thousands) for a discount office supply company with locations in three different regions of the U.S.
(Northeast, Southeast, and West).Which of the following statements is false?

Accepted Answer

A) The west has the most variable sales revenues. 
B) The west has the largest IQR. 
C) The southeast has the smallest IQR. 
D) The northeast has the most variable sales revenues. 
E) The southeast has the least variable sales revenues. 
A) The west has the most variable sales revenues. 
B) The west has the largest IQR. 
C) The southeast has the smallest IQR. 
D) The northeast has the most variable sales revenues. 
E) The southeast has the least variable sales revenues.

Question 5

The following table shows closing share prices for a small sample of companies.   The z score for the share price for Matsushita Electronic Components is

Accepted Answer

A) 1.24. 
B) 2.34. 
C) -2.34. 
D) -3.00. 
E) -1.24. 
A) 1.24. 
B) 2.34. 
C) -2.34. 
D) -3.00. 
E) -1.24.

Question 6

The following table shows total assets ($ billion) for a small sample of U.S.banks.   The mean for these data is

Accepted Answer

A) $ 80.25 billion. 
B) $ 100.35 billion. 
C) $ 75.68 billion. 
D) $ 84 billion. 
E) $ 89 billion. 
A) $ 80.25 billion. 
B) $ 100.35 billion. 
C) $ 75.68 billion. 
D) $ 84 billion. 
E) $ 89 billion.

Question 7

The following table shows closing share prices for a small sample of companies.   The mean closing share price is

Accepted Answer

A) $31.23. 
B) $44.65. 
C) $56.99. 
D) $62.19. 
E) $75.77. 
A) $31.23. 
B) $44.65. 
C) $56.99. 
D) $62.19. 
E) $75.77.

Question 8

Below is a histogram of salaries (in $) for a sample of U.S.marketing managers.   The most appropriate measure of central tendency for these data is the

Accepted Answer

A) median. 
B) mean. 
C) mode. 
D) range. 
E) standard deviation. 
A) median. 
B) mean. 
C) mode. 
D) range. 
E) standard deviation.

Question 9

Consider the five number summary for salaries of U.S.marketing managers.   Suppose the marketing manager who was earning $129,420 got a raise and is now earning $140,000.Which of the following statement is true?

Accepted Answer

A) The mean would increase. 
B) The median would increase. 
C) The range would increase. 
D) Both A and C 
A) The mean would increase. 
B) The median would increase. 
C) The range would increase. 
D) Both A and C

Question 10

The following table shows closing share prices for a small sample of companies.   The standard deviation in closing share prices is

Accepted Answer

A) $31.43. 
B) $44.65. 
C) $56.99. 
D) $62.19. 
E) $75.77. 
A) $31.43. 
B) $44.65. 
C) $56.99. 
D) $62.19. 
E) $75.77.

Question 11

The following table shows total assets ($ billion) for a small sample of U.S.banks.   The standard deviation for these data is

Accepted Answer

A) $12.78 billion. 
B) $ 11.27 billion. 
C) $ 127.01 billion. 
D) $ 21.67 billion. 
E) $ 34 billion. 
A) $12.78 billion. 
B) $ 11.27 billion. 
C) $ 127.01 billion. 
D) $ 21.67 billion. 
E) $ 34 billion.

Question 12

The following table shows total assets ($ billion) for a small sample of U.S.banks.   The z- score for the total assets of Fifth Third Bank is

Accepted Answer

A) 1.25. 
B) -1.25. 
C) -2.5. 
D) 1.97. 
E) -1.97. 
A) 1.25. 
B) -1.25. 
C) -2.5. 
D) 1.97. 
E) -1.97.

Question 13

Consider the five number summary of hourly wages ($) for a sample of sales managers.Suppose the mean hourly wage is $38.50.What can we say about the shape
Of the distribution?

Accepted Answer

A) The distribution of hourly wages for sales managers is symmetric. 
B) The distribution of hourly wages for sales managers is skewed right. 
C) The distribution of hourly wages for sales managers is skewed left. 
D) The distribution of hourly wages for sales managers is bimodal. 
E) None of the above. 
A) The distribution of hourly wages for sales managers is symmetric. 
B) The distribution of hourly wages for sales managers is skewed right. 
C) The distribution of hourly wages for sales managers is skewed left. 
D) The distribution of hourly wages for sales managers is bimodal. 
E) None of the above.

Question 14

The ASQ (American Society for Quality) regularly conducts a salary survey of its membership, primarily quality management professionals.Based on the most recently
Published mean and standard deviation, a quality control specialist calculated the z-score
Associated with his own salary and found it was -2.50.This tells him that his salary is

Accepted Answer

A) 2 and a half times more than the average salary. 
B) 2 and a half times less than the average salary. 
C) is 2.5 standard deviations above the average salary. 
D) is 2.5 standard deviations below the average salary. 
E) much higher than the average salary. 
A) 2 and a half times more than the average salary. 
B) 2 and a half times less than the average salary. 
C) is 2.5 standard deviations above the average salary. 
D) is 2.5 standard deviations below the average salary. 
E) much higher than the average salary.

Question 15

Below is a histogram of salaries (in $) for a sample of U.S.marketing managers.   The shape of this distribution is

Accepted Answer

A) symmetric. 
B) bimodal. 
C) right skewed. 
D) left skewed. 
E) normal. 
A) symmetric. 
B) bimodal. 
C) right skewed. 
D) left skewed. 
E) normal.

Question 16

Consider the five number summary of hourly wages ($) for a sample of sales managers.   The IQR for these data is

Accepted Answer

A) $11.70 
B) $46.17 
C) $67.11 
D) $20.94 
E) $44.77 
A) $11.70 
B) $46.17 
C) $67.11 
D) $20.94 
E) $44.77

Question 17

Consider the five number summary of hourly wages ($) for a sample of sales managers.

Accepted Answer

A) $11.70 
B) $46.17 
C) $67.11 
D) $20.94 
E) $44.77 
A) $11.70 
B) $46.17 
C) $67.11 
D) $20.94 
E) $44.77

Consider the five number summary of hourly wages ($) for a sample of advertising / promotion managers.

Here is the five number summary for salaries of U.S.marketing managers. The IQR is

The following boxplots show monthly sales revenue figures ($ thousands) for a discount office supply company with locations in three different regions of the U.S. (Northeast, Southeast, and West).Which of the following statements is true? 5-20 Chapter 5 Displaying and Describing Quantitative Data

The following boxplots show monthly sales revenue figures ($ thousands) for a discount office supply company with locations in three different regions of the U.S. (Northeast, Southeast, and West).Which of the following statements is false?

The following table shows closing share prices for a small sample of companies. The z score for the share price for Matsushita Electronic Components is

The following table shows total assets ($ billion) for a small sample of U.S.banks. The mean for these data is

The following table shows closing share prices for a small sample of companies. The mean closing share price is

Below is a histogram of salaries (in $) for a sample of U.S.marketing managers. The most appropriate measure of central tendency for these data is the

Consider the five number summary for salaries of U.S.marketing managers. Suppose the marketing manager who was earning $129,420 got a raise and is now earning $140,000.Which of the following statement is true?

The following table shows closing share prices for a small sample of companies. The standard deviation in closing share prices is

The following table shows total assets ($ billion) for a small sample of U.S.banks. The standard deviation for these data is

The following table shows total assets ($ billion) for a small sample of U.S.banks. The z- score for the total assets of Fifth Third Bank is

Consider the five number summary of hourly wages ($) for a sample of sales managers.Suppose the mean hourly wage is $38.50.What can we say about the shape Of the distribution?

Below is a histogram of salaries (in $) for a sample of U.S.marketing managers. The shape of this distribution is

Consider the five number summary of hourly wages ($) for a sample of sales managers. The IQR for these data is

Consider the five number summary of hourly wages ($) for a sample of sales managers.

Data

Surveys and Sampling Multiple Choice

Displaying and Describing Categorical Data

Correlation and Linear Regression

Randomness and Probability

Random Variables and Probability Models

Sampling Distributions and Confidence Intervals for Proportions

Testing Hypotheses About Proportions

Confidence Intervals and Hypothesis

Comparing Two Groups

Inference for Counts: Chi-Square

Inference for Regression

Multiple Regression

Introduction to Data Mining

Filters

Exam 5: Displaying and Describing Quantitative Data

Consider the five number summary of hourly wages ($) for a sample of advertising / promotion managers.

Here is the five number summary for salaries of U.S.marketing managers. The IQR is

The following boxplots show monthly sales revenue figures ($ thousands) for a discount office supply company with locations in three different regions of the U.S. (Northeast, Southeast, and West).Which of the following statements is true? 5-20 Chapter 5 Displaying and Describing Quantitative Data

The following boxplots show monthly sales revenue figures ($ thousands) for a discount office supply company with locations in three different regions of the U.S. (Northeast, Southeast, and West).Which of the following statements is false?

The following table shows closing share prices for a small sample of companies. The z score for the share price for Matsushita Electronic Components is

The following table shows total assets ($ billion) for a small sample of U.S.banks. The mean for these data is

The following table shows closing share prices for a small sample of companies. The mean closing share price is

Below is a histogram of salaries (in $) for a sample of U.S.marketing managers. The most appropriate measure of central tendency for these data is the

Consider the five number summary for salaries of U.S.marketing managers. Suppose the marketing manager who was earning $129,420 got a raise and is now earning $140,000.Which of the following statement is true?

The following table shows closing share prices for a small sample of companies. The standard deviation in closing share prices is

The following table shows total assets ($ billion) for a small sample of U.S.banks. The standard deviation for these data is

The following table shows total assets ($ billion) for a small sample of U.S.banks. The z- score for the total assets of Fifth Third Bank is

Consider the five number summary of hourly wages ($) for a sample of sales managers.Suppose the mean hourly wage is $38.50.What can we say about the shape Of the distribution?

Below is a histogram of salaries (in $) for a sample of U.S.marketing managers. The shape of this distribution is

Consider the five number summary of hourly wages ($) for a sample of sales managers. The IQR for these data is

Consider the five number summary of hourly wages ($) for a sample of sales managers.

Data

Surveys and Sampling Multiple Choice

Displaying and Describing Categorical Data

Correlation and Linear Regression

Randomness and Probability

Random Variables and Probability Models

Sampling Distributions and Confidence Intervals for Proportions

Testing Hypotheses About Proportions

Confidence Intervals and Hypothesis

Comparing Two Groups

Inference for Counts: Chi-Square

Inference for Regression

Multiple Regression

Introduction to Data Mining

Filters