Homework Help is Here – Start Your Trial Now!
Math
Statistics
You want to estimate the proportion of all passengers who survived the Titanic. You do not have time to research every single passenger, so you decide to use stratified random sampling based on class (1* 2nd, or 3rd). Titanic had a total of 320 1* class passengers, 285 2nd class passengers, and 706 passengers in 3rd class. Here is a summary of the data you collected: Rows: Class Columns: Survived No Yes All 1st Class 9 11 20 2nd Class 6 5 11 3rd Class 27 7 34 All 42 23 65 For example, looking at the table above you can see that you randomly sampled 20 passengers from 1* class and found that 11 of them survived. a. Use stratified random sampling to estimate the proportion of all Titanic passengers who survived, and place a bound on the error of estimation. Use three decimals. b. The actual population proportion for Titanic passengers who survived was 38.44%. Without knowing the true value for p, would you have concluded that p = 38.44% was likely, given your results for part (a)? Explain your answer.

You want to estimate the proportion of all passengers who survived the Titanic. You do not have time to research every single passenger, so you decide to use stratified random sampling based on class (1* 2nd, or 3rd). Titanic had a total of 320 1* class passengers, 285 2nd class passengers, and 706 passengers in 3rd class. Here is a summary of the data you collected: Rows: Class Columns: Survived No Yes All 1st Class 9 11 20 2nd Class 6 5 11 3rd Class 27 7 34 All 42 23 65 For example, looking at the table above you can see that you randomly sampled 20 passengers from 1* class and found that 11 of them survived. a. Use stratified random sampling to estimate the proportion of all Titanic passengers who survived, and place a bound on the error of estimation. Use three decimals. b. The actual population proportion for Titanic passengers who survived was 38.44%. Without knowing the true value for p, would you have concluded that p = 38.44% was likely, given your results for part (a)? Explain your answer.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Topic Video
Question
You want to estimate the proportion of all passengers who survived the Titanic. You do not have time to research every single passenger, so you decide to use stratified random sampling based on class (1* 2nd, or 3rd). Titanic had a total of 320 1* class passengers, 285 2nd class passengers, and 706 passengers in 3rd class. Here is a summary of the data you collected: Rows: Class Columns: Survived No Yes All 1st Class 9 11 20 2nd Class 6 5 11 3rd Class 27 7 34 All 42 23 65 For example, looking at the table above you can see that you randomly sampled 20 passengers from 1* class and found that 11 of them survived. a. Use stratified random sampling to estimate the proportion of all Titanic passengers who survived, and place a bound on the error of estimation. Use three decimals. b. The actual population proportion for Titanic passengers who survived was 38.44%. Without knowing the true value for p, would you have concluded that p = 38.44% was likely, given your results for part (a)? Explain your answer.
Transcribed Image Text:You want to estimate the proportion of all passengers who survived the Titanic. You do not have time to research every single passenger, so you decide to use stratified random sampling based on class (1* 2nd, or 3rd). Titanic had a total of 320 1* class passengers, 285 2nd class passengers, and 706 passengers in 3rd class. Here is a summary of the data you collected: Rows: Class Columns: Survived No Yes All 1st Class 9 11 20 2nd Class 6 5 11 3rd Class 27 7 34 All 42 23 65 For example, looking at the table above you can see that you randomly sampled 20 passengers from 1* class and found that 11 of them survived. a. Use stratified random sampling to estimate the proportion of all Titanic passengers who survived, and place a bound on the error of estimation. Use three decimals. b. The actual population proportion for Titanic passengers who survived was 38.44%. Without knowing the true value for p, would you have concluded that p = 38.44% was likely, given your results for part (a)? Explain your answer.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 5 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Data Collection, Sampling Methods, and Bias
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
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
SEE MORE TEXTBOOKS