To compute the confidence level and the sample size lets vary the confidence level and the accuracy of the textbook example of the mean burn of the sample of propellants. Remember that in the textbook example if the x=51.3 n was equal to 25 propellants. a = 0.05 Z² = Z0.025 = ±1.96 o = 2 cm/second Let change a = 0.01, and the other variables remain the same. The new accuracy is 0.01 cm/sec. Questions: 1. If you change the alpha from 0.05 to an alpha of 0.01 the confidence level limits are smaller? a. True b. False 2. If you change the accuracy level from 0.1 cm/sec to 0.01 cm/sec the sample size is bigger? a. True b. False

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
100%
To compute the confidence level and the sample size lets vary the confidence level and
the accuracy of the textbook example of the mean burn of the sample of propellants.
Remember that in the textbook example if the
x = 51.3
n was equal to 25 propellants.
a = 0.05
Z-²/2 = = Zo.025 = ± 1.96
σ = 2 cm/second
Let change a = 0.01, and the other variables remain the same.
The new accuracy is 0.01 cm/sec.
Questions:
1. If you change the alpha from 0.05 to an alpha of 0.01 the confidence level limits are
smaller?
a. True
b. False
2. If you change the accuracy level from 0.1 cm/sec to 0.01 cm/sec the sample size is
bigger?
a. True
b. False
Transcribed Image Text:To compute the confidence level and the sample size lets vary the confidence level and the accuracy of the textbook example of the mean burn of the sample of propellants. Remember that in the textbook example if the x = 51.3 n was equal to 25 propellants. a = 0.05 Z-²/2 = = Zo.025 = ± 1.96 σ = 2 cm/second Let change a = 0.01, and the other variables remain the same. The new accuracy is 0.01 cm/sec. Questions: 1. If you change the alpha from 0.05 to an alpha of 0.01 the confidence level limits are smaller? a. True b. False 2. If you change the accuracy level from 0.1 cm/sec to 0.01 cm/sec the sample size is bigger? a. True b. False
Expert Solution
steps

Step by step

Solved in 3 steps with 7 images

Blurred answer
Follow-up Questions
Read through expert solutions to related follow-up questions below.
Follow-up Question

i believe there is an error, x = 51.3 not 5.13. 

Solution
Bartleby Expert
SEE SOLUTION
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