A colonoscopy is a screening test for colon cancer, recommended as a routine test for adults over age 50. One study provides the best evidence yet that this test saves lives. The proportion of people with colon polyps expected to die from colon cancer is 0.01. A sample of 2602 people who had polyps removed during a colonoscopy were followed for 20 years, and 12 of them died from colon cancer. Does this provide evidence that the proportion of people who die from colon cancer after having polyps removed in a colonoscopy is significantly less than the expected proportion (without a colonoscopy) of 0.01?
A colonoscopy is a screening test for colon cancer, recommended as a routine test for adults over age 50. One study provides the best evidence yet that this test saves lives. The proportion of people with colon polyps expected to die from colon cancer is 0.01. A sample of 2602 people who had polyps removed during a colonoscopy were followed for 20 years, and 12 of them died from colon cancer. Does this provide evidence that the proportion of people who die from colon cancer after having polyps removed in a colonoscopy is significantly less than the expected proportion (without a colonoscopy) of 0.01?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question

Transcribed Image Text:estion 10 of 13
0/2.7 E
A colonoscopy is a screening test for colon cancer, recommended as a routine test for adults over age 50. One study provides the best
evidence yet that this test saves lives. The proportion of people with colon polyps expected to die from colon cancer is 0.01. A sample
of 2602 people who had polyps removed during a colonoscopy were followed for 20 years, and 12 of them died from colon cancer.
Does this provide evidence that the proportion of people who die from colon cancer after having polyps removed in a colonoscopy is
significantly less than the expected proportion (without a colonoscopy) of 0.01?
1Zauber, et.al., "Colonoscopic Polypectomy and Long-Term Prevention of Colorectal-Cancer Deaths," New England Journal of Medicine,
2012; 366: 687-696.
X Your answer is incorrect.
(a) What are the null and alternative hypotheses?
Edit
: Pi
: P2
: 0.01
d ::
: 11
: 12
: P1
: P2
|
P2
|
vs Ha:
Pi
|
Ho:
P1
P2
Type here to search
hp
V
..
..

Transcribed Image Text:(b) What is the sample proportion?
Round your answer to four decimal places
The sample proportion is P
i
0.5
(c) The figure below shows a randomization distribution for this test. Use the fact that there are 1000 dots in the distribution to
find the p-value.
0.01
0.0046
Round your answer to three decimal places, if needed.
p-value =
0.01
e Textbook and Media
P Type here to search
hp
II
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