A study was performed to compare two treatment regimens for smokers who wish to stop smoking. The two treatments are: • Treatment A: Use Nicorette chewing gum, which is a nicotine replacement. • Treatment B: Switch to e-cigarettes. A total of 500 smokers were randomly allocated to one of the two treatments. The outcome after 12 weeks is summarised in the following co table. Stop Smoking Smoke Treatment Yes No Total less A 76 16 108 200 В 78 54 168 300

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
100%
A study was performed to compare two treatment regimens for smokers who wish to stop smoking. The two treatments are:
Treatment A: Use Nicorette chewing gum, which is a nicotine replacement.
Treatment B: Switch to e-cigarettes.
A total of 500 smokers were randomly allocated to one of the two treatments. The outcome after 12 weeks is summarised in the following contingency
table.
Stop Smoking
Smoke
Treatment
Yes
No
Total
less
A
76
16
108
200
В
78
54
168
300
Total
154
70
276
500
Given:
The value of the test statistic is x?
= 14.269.
Use a = 0.05 as the level of significance.
Transcribed Image Text:A study was performed to compare two treatment regimens for smokers who wish to stop smoking. The two treatments are: Treatment A: Use Nicorette chewing gum, which is a nicotine replacement. Treatment B: Switch to e-cigarettes. A total of 500 smokers were randomly allocated to one of the two treatments. The outcome after 12 weeks is summarised in the following contingency table. Stop Smoking Smoke Treatment Yes No Total less A 76 16 108 200 В 78 54 168 300 Total 154 70 276 500 Given: The value of the test statistic is x? = 14.269. Use a = 0.05 as the level of significance.
For Treatment A calculate the expected frequencies by completing the following table:
Stop Smoking
Smoke
Treatment
Yes
No
less
A
Round your answers to 4 decimal places.
Transcribed Image Text:For Treatment A calculate the expected frequencies by completing the following table: Stop Smoking Smoke Treatment Yes No less A Round your answers to 4 decimal places.
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
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 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…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
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
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman