Credit card ownership. Credit card ownership varies across age groups. In 2018 creditcards.com estimated that the percentage of people who own at least one credit card is 67% in the 18-24 age group, 83% in the 25-34 age group, 76% in the 35-49 age group, and 78% in the 50+ age group, Suppose these estimates are based on 455 randomly selected people for each age group. b. Assuming the same sample size will be used in each age group, how large would the sample need ot be to ensure that the margin of error is .03 or less fo each of the four confidence intervals?
Credit card ownership. Credit card ownership varies across age groups. In 2018 creditcards.com estimated that the percentage of people who own at least one credit card is 67% in the 18-24 age group, 83% in the 25-34 age group, 76% in the 35-49 age group, and 78% in the 50+ age group, Suppose these estimates are based on 455 randomly selected people for each age group. b. Assuming the same sample size will be used in each age group, how large would the sample need ot be to ensure that the margin of error is .03 or less fo each of the four confidence intervals?
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
Chap 8 problem 63SE
Credit card ownership. Credit card ownership varies across age groups. In 2018 creditcards.com estimated that the percentage of people who own at least one credit card is 67% in the 18-24 age group, 83% in the 25-34 age group, 76% in the 35-49 age group, and 78% in the 50+ age group, Suppose these estimates are based on 455 randomly selected people for each age group.
b. Assuming the same
In the solved answer you have it as 944 but how do you get 489?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
Knowledge Booster
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.Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman