waited, on average, 18 days with standard deviation 9 days. What kind of a test should CCN perform? z-interval to estimate the difference in two proportions t-interval to estimate the difference in two means Chi-square test for association t-test for the difference in two means -test for the difforongo in
waited, on average, 18 days with standard deviation 9 days. What kind of a test should CCN perform? z-interval to estimate the difference in two proportions t-interval to estimate the difference in two means Chi-square test for association t-test for the difference in two means -test for the difforongo in
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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Question
![The Cardiac Care Network in Ontario, Canada, wants to determine whether the wait for by-
pass surgery is longer than the wait for angiography. A sample of 539 bypass patients waited,
on average, 19 days with standard deviation 10 days; a sample of 847 angiography patients
waited, on average, 18 days with standard deviation 9 days. What kind of a test should CCN
perform?
z-interval to estimate the difference in two proportions
t-interval to estimate the difference in two means
Chi-square test for association
t-test for the difference in two means
z-test for the difference in two proportions
ANOVA](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F37c8cbe2-8f67-4090-8330-ce69eabc3861%2Fc7fad2ad-9fa4-41a3-806b-b861b2424694%2Fbcmuz0d_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The Cardiac Care Network in Ontario, Canada, wants to determine whether the wait for by-
pass surgery is longer than the wait for angiography. A sample of 539 bypass patients waited,
on average, 19 days with standard deviation 10 days; a sample of 847 angiography patients
waited, on average, 18 days with standard deviation 9 days. What kind of a test should CCN
perform?
z-interval to estimate the difference in two proportions
t-interval to estimate the difference in two means
Chi-square test for association
t-test for the difference in two means
z-test for the difference in two proportions
ANOVA
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