Assume that the sample is a simple random sample obtained from a normally distributed population of IQ scores of statistics professors. Use the table below to find the minimum sample size needed to be 95% confident that the sample standard deviations is within 40% of o. Is this sample size practical? 6 To be 95% confident that s is within of the value of o, the sample size n should be at least To be 99% confident that s is within of the value of o, the sample size n should be at least The minimum sample size needed is 1% 5% 10% 20% 30% 40% 50% 19.205 768 1% 5% 192 48 21 12 8 10% 20% 30% 40% 50% 33,218 1,336 336 85 38 22 14

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
Question
Assume that the sample is a simple random sample obtained from a normally distributed population of IQ scores of
statistics professors. Use the table below to find the minimum sample size needed to be 95% confident that the
sample standard deviations is within 40% of o. Is this sample size practical?
6
To be 95% confident that s is
within
of the value of o, the sample size
n should be at least
To be 99% confident that s is
within
of the value of 6, the sample size
n should be at least
The minimum sample size needed is
1% 5% 10% 20% 30% 40% 50%
19.205 768 192 48 21
1%
5% 10% 20 % 30% 40% 50%
33,218 1,336 336
12 8
GEREIR
85 38 22
Save
14
correct
Transcribed Image Text:Assume that the sample is a simple random sample obtained from a normally distributed population of IQ scores of statistics professors. Use the table below to find the minimum sample size needed to be 95% confident that the sample standard deviations is within 40% of o. Is this sample size practical? 6 To be 95% confident that s is within of the value of o, the sample size n should be at least To be 99% confident that s is within of the value of 6, the sample size n should be at least The minimum sample size needed is 1% 5% 10% 20% 30% 40% 50% 19.205 768 192 48 21 1% 5% 10% 20 % 30% 40% 50% 33,218 1,336 336 12 8 GEREIR 85 38 22 Save 14 correct
Expert Solution
steps

Step by step

Solved in 3 steps with 3 images

Blurred answer
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