5. Attending sporting events is a popular source of entertainment. When 1000 people were surveyed, 590 said that getting together with friends was an important reason for attending a sporting event. a. Let p be the proportion of all people attending a sporting event to be with friends. Find a point estimate for p. b. Find a 99% confidence interval for p.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
icon
Concept explainers
Topic Video
Question
#5
5. Attending sporting events is a popular source of entertainment. When 1000 people
were surveyed, 590 said that getting together with friends was an important reason for
attending a sporting event.
a. Let p be the proportion of all people attending a sporting event to be with friends.
Find a point estimate for p.
b. Find a 99% confidence interval for p.
6. You are doing a research project in political science to determine the proportion of
voters in your district who favor capital punishment.
a. If no preliminary sample of voters is taken to estimate p, how large a sample is
necessary to be 99% sure that the point estimate will be within a distance of .01 from p?
b. The NORC found that approximately 67% of people in the U.S. favor capital
punishment. How large a sample is necessary to be 99% sure that the point estimate will
be within a distance of .01 from p?
7. A study was conducted on parental empathy for sensitivity cues and baby
temperament in infants. In a sample of 32 mothers, the mean was 69.44 with a standard
deviation of 11.69. In a sample of 32 fathers, the mean was 59.0 with.a standard deviation
of 11.60. Find a 99% confidence interval for u1-u2.
6
Transcribed Image Text:5. Attending sporting events is a popular source of entertainment. When 1000 people were surveyed, 590 said that getting together with friends was an important reason for attending a sporting event. a. Let p be the proportion of all people attending a sporting event to be with friends. Find a point estimate for p. b. Find a 99% confidence interval for p. 6. You are doing a research project in political science to determine the proportion of voters in your district who favor capital punishment. a. If no preliminary sample of voters is taken to estimate p, how large a sample is necessary to be 99% sure that the point estimate will be within a distance of .01 from p? b. The NORC found that approximately 67% of people in the U.S. favor capital punishment. How large a sample is necessary to be 99% sure that the point estimate will be within a distance of .01 from p? 7. A study was conducted on parental empathy for sensitivity cues and baby temperament in infants. In a sample of 32 mothers, the mean was 69.44 with a standard deviation of 11.69. In a sample of 32 fathers, the mean was 59.0 with.a standard deviation of 11.60. Find a 99% confidence interval for u1-u2. 6
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 3 images

Blurred answer
Knowledge Booster
Application of Algebra
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
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