Concept explainers
(a)
To explain how you could use slips of paper to randomly reassign the subjects to the treatment groups.
(a)
Explanation of Solution
In the question, the researchers wants to find out that is yawning is contagious or not. Thus, we can use slips of paper to randomly reassign the subjects to the treatment groups as:
First, write "yawn" on
(b)
To explain what conclusion would you draw about whether yawning is contagious.
(b)
Explanation of Solution
n the question, the researchers wants to find out that is yawning is contagious or not. Now, suppose we used the method in part (a) to redo the random assignment fifty times. The Fathom dot plot given in question displays the number of subjects in the yawn seed group who yawned in each of these random assignments. Thus, we conclude that by looking at the dot plot and the method in part (a) yawning does not appear contagious because between
Chapter 4 Solutions
The Practice of Statistics for AP - 4th Edition
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