Practice of Statistics in the Life Sciences
4th Edition
ISBN: 9781319013370
Author: Brigitte Baldi, David S. Moore
Publisher: W. H. Freeman
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Question
Chapter 6, Problem 6.1AYK
To determine
To identify: whether the study in the problem is observational or experimental.
Expert Solution & Answer
Answer to Problem 6.1AYK
The particular study is observational study.
Explanation of Solution
The study aims to determine percentage of adults whose right cerebral hemisphere is larger than left hemisphere. On a group of people aged 20 and older representing American adult population, brain imaging is done. Afterwards each scan is analyzed to decide which part of brain is larger.
The above study is an observational study and not experimental study.
This is because an observational study measures variable of interest (percentage of adults with larger right hemisphere) but does not influence the results. In an experimental study, a particular treatment is applied to a group of people and compared with control group (group where in no treatment is applied).
Here since brain imaging is done for every member without influencing the response, it is not an experimental study.
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Pam, Rob and Sam get a cake that is one-third chocolate, one-third vanilla, and one-third strawberry as shown below. They wish to fairly divide the cake using the lone chooser method. Pam likes strawberry twice as much as chocolate or vanilla. Rob only likes chocolate. Sam, the chooser, likes vanilla and strawberry twice as much as chocolate. In the first division, Pam cuts the strawberry piece off and lets Rob choose his favorite piece. Based on that, Rob chooses the chocolate and vanilla parts. Note: All cuts made to the cake shown below are vertical.Which is a second division that Rob would make of his share of the cake?
Three players (one divider and two choosers) are going to divide a cake fairly using the lone divider method. The divider cuts the cake into three slices (s1, s2, and s3).
If the choosers' declarations are Chooser 1: {s1 , s2} and Chooser 2: {s2 , s3}.
Using the lone-divider method, how many different fair divisions of this cake are possible?
Chapter 6 Solutions
Practice of Statistics in the Life Sciences
Ch. 6 - Prob. 6.1AYKCh. 6 - Prob. 6.2AYKCh. 6 - Prob. 6.3AYKCh. 6 - Prob. 6.4AYKCh. 6 - Prob. 6.5AYKCh. 6 - Prob. 6.6AYKCh. 6 - Prob. 6.7AYKCh. 6 - Prob. 6.8AYKCh. 6 - Prob. 6.9AYKCh. 6 - Prob. 6.10AYK
Ch. 6 - Prob. 6.11AYKCh. 6 - Prob. 6.12AYKCh. 6 - Prob. 6.13AYKCh. 6 - Prob. 6.14AYKCh. 6 - Prob. 6.15CYSCh. 6 - Prob. 6.16CYSCh. 6 - Prob. 6.17CYSCh. 6 - Prob. 6.18CYSCh. 6 - Prob. 6.19CYSCh. 6 - Prob. 6.20CYSCh. 6 - Prob. 6.21CYSCh. 6 - Prob. 6.22CYSCh. 6 - Prob. 6.23CYSCh. 6 - Prob. 6.24CYSCh. 6 - Prob. 6.25ECh. 6 - Prob. 6.26ECh. 6 - Prob. 6.27ECh. 6 - Prob. 6.28ECh. 6 - Prob. 6.29ECh. 6 - Prob. 6.30ECh. 6 - Prob. 6.31ECh. 6 - Prob. 6.32ECh. 6 - Prob. 6.33ECh. 6 - Prob. 6.34ECh. 6 - Prob. 6.35ECh. 6 - Prob. 6.36ECh. 6 - Prob. 6.37ECh. 6 - Prob. 6.38ECh. 6 - Prob. 6.39ECh. 6 - Prob. 6.40ECh. 6 - Prob. 6.41ECh. 6 - Prob. 6.42ECh. 6 - Prob. 6.43E
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