Question 1

What error did Florence Nightingale commit in her bar graph presentation to the queen of England?

Accepted Answer

A) interval widths were too large 
B) interval widths were too small 
C) overlapping interval widths 
D) too many colors 
A) interval widths were too large 
B) interval widths were too small 
C) overlapping interval widths 
D) too many colors C

Question 2

Perhaps the oldest presentation in history of descriptive statistics was

Accepted Answer

A) a frequency distribution 
B) graphs and tables 
C) a frequency polygon 
D) a pie chart 
A) a frequency distribution 
B) graphs and tables 
C) a frequency polygon 
D) a pie chart A

Question 3

Who used the word statistics in the English language as a method of determining a country's inhabitants' happiness?

Accepted Answer

A) De Moivre 
B) Sinclair 
C) Gauss 
D) Galton 
A) De Moivre 
B) Sinclair 
C) Gauss 
D) Galton B

Question 4

In a study by Micceri of 440 large-sample distributions, what percentages were significantly different from the true normal distribution?

Accepted Answer

A) 54% 
B) 79% 
C) 92% 
D) 100% 
A) 54% 
B) 79% 
C) 92% 
D) 100%

Question 5

In a stem-and-leaf plot of the previous data, what would the third stem look like?

Accepted Answer

A) 4 | 0245 
B) 40 | 1, 42 | 1, 44 | 1, 45 | 1 
C) 5 | 679 
D) 6 | 000 
A) 4 | 0245 
B) 40 | 1, 42 | 1, 44 | 1, 45 | 1 
C) 5 | 679 
D) 6 | 000

Question 6

How many graphs and tables did the rocket manufacturers prepare to convince NASA that the seals in the Space Shuttle Challenger might fail in cold weather?

Accepted Answer

A) 1 
B) 2 
C) 13 
D) 25 
A) 1 
B) 2 
C) 13 
D) 25

Question 7

Which of the following was NOT a characteristic of bad graphs according to Tufte?

Accepted Answer

A) low density 
B) chart junk 
C) changing scales 
D) labeling badly 
E) the use of only black and white in a graph 
A) low density 
B) chart junk 
C) changing scales 
D) labeling badly 
E) the use of only black and white in a graph

Question 8

In Figure 2.3 (truck brands), the major problem of the presentation was

Accepted Answer

A) cutting off the bottom 95% of the bars' heights 
B) hiding the brand names of the competing trucks 
C) too many useless colors 
D) meaningless three-dimensional bars 
E) all of the above 
A) cutting off the bottom 95% of the bars' heights 
B) hiding the brand names of the competing trucks 
C) too many useless colors 
D) meaningless three-dimensional bars 
E) all of the above

Question 9

A very pointed narrow frequency distribution graph is said to be

Accepted Answer

A) positively skewed 
B) negatively skewed 
C) leptokurtic 
D) mesokurtic 
E) platykurtic 
A) positively skewed 
B) negatively skewed 
C) leptokurtic 
D) mesokurtic 
E) platykurtic

Question 10

A very flat frequency distribution graph is said to be

Accepted Answer

A) positively skewed 
B) negatively skewed 
C) leptokurtic 
D) mesokurtic 
E) platykurtic 
A) positively skewed 
B) negatively skewed 
C) leptokurtic 
D) mesokurtic 
E) platykurtic

Question 11

To display vividly the cause of some types of ulcers, a researcher

Accepted Answer

A) cured the patient with milk and a bland diet 
B) injected himself with the bacteria from a patient's ulcer 
C) injected a patient with ulcers with an antibiotic 
D) injected a patient without ulcers with bacteria from a patient's ulcer 
A) cured the patient with milk and a bland diet 
B) injected himself with the bacteria from a patient's ulcer 
C) injected a patient with ulcers with an antibiotic 
D) injected a patient without ulcers with bacteria from a patient's ulcer

Question 12

For the previous set of numbers, what is the percentage of frequency of the second interval rounded to one decimal place?

Accepted Answer

A) 20.7% 
B) 40.7% 
C) 40.74% 
D) 40.8% 
A) 20.7% 
B) 40.7% 
C) 40.74% 
D) 40.8%

Question 13

For the previous set of numbers, what is the cumulative percentage, including the second interval rounded to one decimal place?

Accepted Answer

A) 62.96% 
B) 62.9% 
C) 63.0% 
D) 62.9629% 
A) 62.96% 
B) 62.9% 
C) 63.0% 
D) 62.9629%

Question 14

The normal curve is also called the

Accepted Answer

A) vertical frequency distribution 
B) bimodal distribution 
C) kurtotic curve 
D) bell-shaped curve 
A) vertical frequency distribution 
B) bimodal distribution 
C) kurtotic curve 
D) bell-shaped curve

Question 15

Currently, the best substitute for the word errors in statistics is

Accepted Answer

A) problems 
B) klinkers 
C) variations 
D) mistakes 
A) problems 
B) klinkers 
C) variations 
D) mistakes

Question 16

A perfectly normal frequency distribution graph is said to be

Accepted Answer

A) positively skewed 
B) negatively skewed 
C) leptokurtic 
D) mesokurtic 
E) platykurtic 
A) positively skewed 
B) negatively skewed 
C) leptokurtic 
D) mesokurtic 
E) platykurtic

Question 17

In a frequency distribution table where a majority of the frequencies are 1, the best solution would be to

Accepted Answer

A) group the data into intervals 
B) use cumulative frequency as the dependent variable 
C) use percentages instead of frequencies 
D) use a frequency polygon 
E) all of the above would be acceptable solutions 
A) group the data into intervals 
B) use cumulative frequency as the dependent variable 
C) use percentages instead of frequencies 
D) use a frequency polygon 
E) all of the above would be acceptable solutions

Question 18

In her bar graph presentation to the queen of England, Florence Nightingale controlled for which two rival hypotheses?

Accepted Answer

A) age and gender 
B) age and ethnicity 
C) age and war 
D) health and conditions 
E) war and gender 
A) age and gender 
B) age and ethnicity 
C) age and war 
D) health and conditions 
E) war and gender

Question 19

In a stem-and-leaf plot of the previous data, what would the second stem look like?

Accepted Answer

A) 3 | 12345668999 
B) 3 | 0123456678999 
C) 3 | 02345668999 
D) 3032333435(1)36(2)38(1)39(3) 
A) 3 | 12345668999 
B) 3 | 0123456678999 
C) 3 | 02345668999 
D) 3032333435(1)36(2)38(1)39(3)

Question 20

How many graphs and tables in the previous question showed the direct comparison between the number of seal failures and temperature?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 13 
E) all 25 but NASA had already made up its mind 
A) 0 
B) 1 
C) 2 
D) 13 
E) all 25 but NASA had already made up its mind

What error did Florence Nightingale commit in her bar graph presentation to the queen of England?

Perhaps the oldest presentation in history of descriptive statistics was

Who used the word statistics in the English language as a method of determining a country's inhabitants' happiness?

In a study by Micceri of 440 large-sample distributions, what percentages were significantly different from the true normal distribution?

In a stem-and-leaf plot of the previous data, what would the third stem look like?

How many graphs and tables did the rocket manufacturers prepare to convince NASA that the seals in the Space Shuttle Challenger might fail in cold weather?

Which of the following was NOT a characteristic of bad graphs according to Tufte?

In Figure 2.3 (truck brands), the major problem of the presentation was

A very pointed narrow frequency distribution graph is said to be

A very flat frequency distribution graph is said to be

To display vividly the cause of some types of ulcers, a researcher

For the previous set of numbers, what is the percentage of frequency of the second interval rounded to one decimal place?

For the previous set of numbers, what is the cumulative percentage, including the second interval rounded to one decimal place?

The normal curve is also called the

Currently, the best substitute for the word errors in statistics is

A perfectly normal frequency distribution graph is said to be

In a frequency distribution table where a majority of the frequencies are 1, the best solution would be to

In her bar graph presentation to the queen of England, Florence Nightingale controlled for which two rival hypotheses?

In a stem-and-leaf plot of the previous data, what would the second stem look like?

How many graphs and tables in the previous question showed the direct comparison between the number of seal failures and temperature?

A Gentle Introduction

Statistical Parameters: Measures of Central Tendency and Variation

Standard Scores, the Z Distribution, and Hypothesis Testing

Inferential Statistics: The Controlled Experiment, Hypothesis Testing, and the Z Distribution

An Introduction to Correlation and Regression

The T Test for Independent Groups

The T Test for Dependent Groups

Analysis of Variance Anova: One-Factor Completely Randomized Design

After a Significant Analysis of Variance: Multiple Comparison Tests

Analysis of Variance Anova: One-Factor Repeated-Measures Design

Analysis of Variance: Two-Factor Completely Randomized Design

Post Hoc Analysis of Factorial Anova

Factorial Anova: Additional Designs

Nonparametric Statistics: The Chi-Square Test

Other Statistical Parameters and Tests

Filters

Exam 2: Descriptive Statistics: Understanding Distributions of Numbers

What error did Florence Nightingale commit in her bar graph presentation to the queen of England?

Perhaps the oldest presentation in history of descriptive statistics was

Who used the word statistics in the English language as a method of determining a country's inhabitants' happiness?

In a study by Micceri of 440 large-sample distributions, what percentages were significantly different from the true normal distribution?

In a stem-and-leaf plot of the previous data, what would the third stem look like?

How many graphs and tables did the rocket manufacturers prepare to convince NASA that the seals in the Space Shuttle Challenger might fail in cold weather?

Which of the following was NOT a characteristic of bad graphs according to Tufte?

In Figure 2.3 (truck brands), the major problem of the presentation was

A very pointed narrow frequency distribution graph is said to be

A very flat frequency distribution graph is said to be

To display vividly the cause of some types of ulcers, a researcher

For the previous set of numbers, what is the percentage of frequency of the second interval rounded to one decimal place?

For the previous set of numbers, what is the cumulative percentage, including the second interval rounded to one decimal place?

The normal curve is also called the

Currently, the best substitute for the word errors in statistics is

A perfectly normal frequency distribution graph is said to be

In a frequency distribution table where a majority of the frequencies are 1, the best solution would be to

In her bar graph presentation to the queen of England, Florence Nightingale controlled for which two rival hypotheses?

In a stem-and-leaf plot of the previous data, what would the second stem look like?

How many graphs and tables in the previous question showed the direct comparison between the number of seal failures and temperature?

A Gentle Introduction

Statistical Parameters: Measures of Central Tendency and Variation

Standard Scores, the Z Distribution, and Hypothesis Testing

Inferential Statistics: The Controlled Experiment, Hypothesis Testing, and the Z Distribution

An Introduction to Correlation and Regression

The T Test for Independent Groups

The T Test for Dependent Groups

Analysis of Variance Anova: One-Factor Completely Randomized Design

After a Significant Analysis of Variance: Multiple Comparison Tests

Analysis of Variance Anova: One-Factor Repeated-Measures Design

Analysis of Variance: Two-Factor Completely Randomized Design

Post Hoc Analysis of Factorial Anova

Factorial Anova: Additional Designs

Nonparametric Statistics: The Chi-Square Test

Other Statistical Parameters and Tests

Filters