Inspired by the example about how background music influences choice of entrée at a restaurant, a statistics student decided to investigate other ways to influence a person's behavior. Using 60 volunteers, she randomly assigned 20 volunteers to get a "red" survey, 20 volunteers to get a "blue" survey, and 20 volunteers to get a control survey. The first three questions on each survey were the same, but the fourth and fifth questions were different. For example, the fourth question on the “red” survey was "When you think of the color red, what do you think about?" On the blue survey, the question replaced red with blue. On the control survey, the last two questions were not about color. As a reward, each volunteer was allowed to choose a chocolate candy in a red wrapper or a chocolate candy in a blue wrapper. The table shows the result of the experiment. The statistics student will use a chi-square test for homogeneity to analyze her findings. Color of candy Red Blue Total Red 13 7 20 Survey Type Control 8 12 20 Blue 5 15 20 Total 26 34 60 Which of the following is false? The 10% condition is not needed because the volunteers were not randomly selected from the population. All expected counts are at least 5. The participants were randomly selected. All of the conditions are met for conducting a chi- square test for homogeneity. Volunteers were randomly assigned to the survey types.
Inspired by the example about how background music influences choice of entrée at a restaurant, a statistics student decided to investigate other ways to influence a person's behavior. Using 60 volunteers, she randomly assigned 20 volunteers to get a "red" survey, 20 volunteers to get a "blue" survey, and 20 volunteers to get a control survey. The first three questions on each survey were the same, but the fourth and fifth questions were different. For example, the fourth question on the “red” survey was "When you think of the color red, what do you think about?" On the blue survey, the question replaced red with blue. On the control survey, the last two questions were not about color. As a reward, each volunteer was allowed to choose a chocolate candy in a red wrapper or a chocolate candy in a blue wrapper. The table shows the result of the experiment. The statistics student will use a chi-square test for homogeneity to analyze her findings. Color of candy Red Blue Total Red 13 7 20 Survey Type Control 8 12 20 Blue 5 15 20 Total 26 34 60 Which of the following is false? The 10% condition is not needed because the volunteers were not randomly selected from the population. All expected counts are at least 5. The participants were randomly selected. All of the conditions are met for conducting a chi- square test for homogeneity. Volunteers were randomly assigned to the survey types.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:Inspired by the example about how background music influences choice of entrée at a restaurant, a statistics student decided to
investigate other ways to influence a person's behavior. Using 60 volunteers, she randomly assigned 20 volunteers to get a "red"
survey, 20 volunteers to get a “blue” survey, and 20 volunteers to get a control survey. The first three questions on each survey
were the same, but the fourth and fifth questions were different. For example, the fourth question on the "red" survey was
"When you think of the color red, what do you think about?" On the blue survey, the question replaced red with blue. On the
control survey, the last two questions were not about color. As a reward, each volunteer was allowed to choose a chocolate candy
in a red wrapper or a chocolate candy in a blue wrapper.
The table shows the result of the experiment.
The statistics student will use a chi-square test for homogeneity to analyze her findings.
Color
of candy
Red
Red
13
Blue
7
Total 20
Survey Type
Control
8
12
20
Blue
5
15
20
Total
26
34
60
Which of the following is false?
The 10% condition is not needed because the
volunteers were not randomly selected from the
population.
All expected counts are at least 5.
The participants were randomly selected.
All of the conditions are met for conducting a chi-
square test for homogeneity.
Volunteers were randomly assigned to the survey
types.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman