5. Help for Insomniacs. In Exercise 1.23, we learned of a study to determine whether just one session of cognitive behavioral therapy can help people with insomnia. In the study, forty people who had been diagnosed with insomnia were randomly divided into two groups of 20 each. People in one group received a one-hour cognitive behavioral therapy session while those in the other group received no treatment. Three months later, 14 of those in the therapy group reported sleep improvements while only 3 people in the other group reported improvements. a. Create a two-way table of the data. Include row and column labels, as well as totals across and down. b. How many of the 40 people in the study reported sleep improvement? c. Of the people receiving the therapy session, what proportion p, reported sleep improvements? Show your calculation with your answer. d. What proportion of people who did not receive therapy reported sleep improvements? Show your calculation with your answer. e. Calculate the difference in proportion reporting sleep improvements, PP, between those getting therapy and those not getting therapy. f. Interpret the value you calculated for P-PN in context by writing 1-2 complete sentences.
5. Help for Insomniacs. In Exercise 1.23, we learned of a study to determine whether just one session of cognitive behavioral therapy can help people with insomnia. In the study, forty people who had been diagnosed with insomnia were randomly divided into two groups of 20 each. People in one group received a one-hour cognitive behavioral therapy session while those in the other group received no treatment. Three months later, 14 of those in the therapy group reported sleep improvements while only 3 people in the other group reported improvements. a. Create a two-way table of the data. Include row and column labels, as well as totals across and down. b. How many of the 40 people in the study reported sleep improvement? c. Of the people receiving the therapy session, what proportion p, reported sleep improvements? Show your calculation with your answer. d. What proportion of people who did not receive therapy reported sleep improvements? Show your calculation with your answer. e. Calculate the difference in proportion reporting sleep improvements, PP, between those getting therapy and those not getting therapy. f. Interpret the value you calculated for P-PN in context by writing 1-2 complete sentences.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:5. Help for Insomniacs. In Exercise 1.23, we learned of a study to determine whether just one session of
cognitive behavioral therapy can help people with insomnia. In the study, forty people who had been
diagnosed with insomnia were randomly divided into two groups of 20 each. People in one group
received a one-hour cognitive behavioral therapy session while those in the other group received no
treatment. Three months later, 14 of those in the therapy group reported sleep improvements while
only 3 people in the other group reported improvements.
Create a two-way table of the data. Include row and column labels, as well as totals across and down.
a.
b. How many of the 40 people in the study reported sleep improvement?
c.
Of the people receiving the therapy session, what proportion p, reported sleep improvements? Show
your calculation with your answer.
N
d. What proportion of people who did not receive therapy reported sleep improvements? Show your
calculation with your answer.
N'
e. Calculate the difference in proportion reporting sleep improvements, Pr - PN, between those getting
therapy and those not getting therapy.
f. Interpret the value you calculated for Pr - PN in context by writing 1-2 complete sentences.
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