Stats: Modeling the World Nasta Edition Grades 9-12
3rd Edition
ISBN: 9780131359581
Author: David E. Bock, Paul F. Velleman, Richard D. De Veaux
Publisher: PEARSON
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Chapter 13, Problem 10E
a)
To determine
To find the type of the study.
a)
Expert Solution
Answer to Problem 10E
This is an experimental study.
Explanation of Solution
First need to understand about the experimental study and observational study:
Experimental study: Assigning people or things to groups and applying some treatment to one group, while the other group does not receive the treatment.
Observation study: In an observational study, measure or survey members of a sample without trying to affect them.
This is an experimental study because the treatment is imposed on the subjects.
b)
To determine
To find the subjects.
b)
Expert Solution
Answer to Problem 10E
40 volunteers suffering from insomnia.
Explanation of Solution
In this study, the subjects studied were 40 volunteers who were suffering from insomnia.
c)
To determine
To find the factors and number of levels.
c)
Expert Solution
Answer to Problem 10E
No-dessert diet with 2 levels and Exercise program with 2 levels.
Explanation of Solution
In this study, the experiment having 2 factors which are No-Dessert diet and Exercise program. Also, there are 2 levels in each factor. Desert level having no desert and normal desert. And exercise having levels as no exercise and an exercise program.
d)
To determine
To find the number of treatments.
d)
Expert Solution
Answer to Problem 10E
4
Explanation of Solution
In this study, there are 4 treatments.
e)
To determine
To find the response variable.
e)
Expert Solution
Answer to Problem 10E
The response variable is improvement in ability to sleep.
Explanation of Solution
In this study, the response variable is improvement in ability to sleep
f)
To determine
To identify the type experiment.
f)
Expert Solution
Answer to Problem 10E
Completely randomized experiment.
Explanation of Solution
The experiment is completely randomized because subjects were randomly assigned to a treatment.
g)
To determine
To identify whether the study is blinded or double blinded.
g)
Expert Solution
Answer to Problem 10E
The experiment is not blinded.
Explanation of Solution
The experiment is not blinded because the subjects know that the receiving the no-desserts diet or not. Also, they know whether the received the exercise program or not.
h)
To determine
To explain the scope and conclusions.
h)
Expert Solution
Explanation of Solution
The experiment indicates that the subjects who ate no desserts and engaged in exercise will show the most improvement in their ability to sleep.
Chapter 13 Solutions
Stats: Modeling the World Nasta Edition Grades 9-12
Ch. 13 - Prob. 1ECh. 13 - Prob. 2ECh. 13 - Prob. 3ECh. 13 - Prob. 4ECh. 13 - Prob. 5ECh. 13 - Prob. 6ECh. 13 - Prob. 7ECh. 13 - Prob. 8ECh. 13 - Prob. 9ECh. 13 - Prob. 10E
Ch. 13 - Prob. 11ECh. 13 - Prob. 12ECh. 13 - Prob. 13ECh. 13 - Prob. 14ECh. 13 - Prob. 15ECh. 13 - Prob. 16ECh. 13 - Prob. 17ECh. 13 - Prob. 18ECh. 13 - Prob. 19ECh. 13 - Prob. 20ECh. 13 - Prob. 21ECh. 13 - Prob. 22ECh. 13 - Prob. 23ECh. 13 - Prob. 24ECh. 13 - Prob. 25ECh. 13 - Prob. 26ECh. 13 - Prob. 27ECh. 13 - Prob. 28ECh. 13 - Prob. 29ECh. 13 - Prob. 30ECh. 13 - Prob. 31ECh. 13 - Prob. 32ECh. 13 - Prob. 33ECh. 13 - Prob. 34ECh. 13 - Prob. 35ECh. 13 - Prob. 36ECh. 13 - Prob. 37ECh. 13 - Prob. 38ECh. 13 - Prob. 39ECh. 13 - Prob. 40ECh. 13 - Prob. 41ECh. 13 - Prob. 42ECh. 13 - Prob. 43ECh. 13 - Prob. 44ECh. 13 - Prob. 45ECh. 13 - Prob. 46ECh. 13 - Prob. 47E
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