On April 15th, 1912, the R.M.S. Titanic sank into the North Atlantic Ocean, resulting in the loss of more than 1,500 passengers and crew. Below is a table which summarizes the total number of passengers and the number of survivors for the crew, first-, second-, and third-class. Find the proportion of survivors by type of service (crew, first, second, third). Test the hypothesis at the 99% confidence level that the proportion of first-class survivors is the same as third class (.25). What do you calculate for the test-statistic? What is the critical statistic? What is the conclusion of your hypothesis test? Passengers Survived 885 Class Crew 212 First 325 202 Second 285 118 Third 706 178 Total 2201 710

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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112 am 100% certain that if
113 you bring me into any
114 situation-fm going 2 have
115 a postive impact on u
nd P 116 Confident e/n to adjust
Hargett Computor
ine.pdf - Adobe Acrobat Reader DC (32-bit)
n Window Help
PS3UpdatedS21-0. x
1 /1
即2 在
2. Hypothesis Test of Proportions
On April 15th, 1912, the R.M.S. Titanic sank into the North Atlantic Ocean, resulting in the loss
of more than 1,500 passengers and crew. Below is a table which summarizes the total number of
passengers and the number of survivors for the crew, first-, second-, and third-class. Find the
proportion of survivors by type of service (crew, first, second, third). Test the hypothesis at the
99% confidence level that the proportion of first-class survivors is the same as third class (.25).
What do you calculate for the test-statistic? What is the critical statistic? What is the conclusion
of your hypothesis test?
Class
Passengers Survived
Crew
885
212
First
325
202
Second
285
118
Third
706
178
Total
2201
710
pe here to search
耳|
acer
Transcribed Image Text:112 am 100% certain that if 113 you bring me into any 114 situation-fm going 2 have 115 a postive impact on u nd P 116 Confident e/n to adjust Hargett Computor ine.pdf - Adobe Acrobat Reader DC (32-bit) n Window Help PS3UpdatedS21-0. x 1 /1 即2 在 2. Hypothesis Test of Proportions On April 15th, 1912, the R.M.S. Titanic sank into the North Atlantic Ocean, resulting in the loss of more than 1,500 passengers and crew. Below is a table which summarizes the total number of passengers and the number of survivors for the crew, first-, second-, and third-class. Find the proportion of survivors by type of service (crew, first, second, third). Test the hypothesis at the 99% confidence level that the proportion of first-class survivors is the same as third class (.25). What do you calculate for the test-statistic? What is the critical statistic? What is the conclusion of your hypothesis test? Class Passengers Survived Crew 885 212 First 325 202 Second 285 118 Third 706 178 Total 2201 710 pe here to search 耳| acer
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