. If a hypothesis test is between two variances or standard deviation, a chi-squared test is required. True or False 2.State the null hypothesis if an engine company believes that their products last at least 5 years on average. a. H0 : σ2 > 5 years b. H0 : p > 5 years c. H0 : µ > 5 years d. H0 : σ > 5 years 3. What is the upper limit interval of a two-tailed, 99% confidence level test on a sample size of 140 if the mean is 5.5 with a standard deviation of .82? Hint: use 2.33 as your z value.
. If a hypothesis test is between two variances or standard deviation, a chi-squared test is required. True or False 2.State the null hypothesis if an engine company believes that their products last at least 5 years on average. a. H0 : σ2 > 5 years b. H0 : p > 5 years c. H0 : µ > 5 years d. H0 : σ > 5 years 3. What is the upper limit interval of a two-tailed, 99% confidence level test on a sample size of 140 if the mean is 5.5 with a standard deviation of .82? Hint: use 2.33 as your z value.
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
1. If a hypothesis test is between two variances or standard deviation, a chi-squared test is required.
True or False
2.State the null hypothesis if an engine company believes that their products last at least 5 years on average.
a.
|
H0 : σ2 > 5 years |
b. H0 : p > 5 years
c.
|
H0 : µ > 5 years |
d.
|
H0 : σ > 5 years |
3. What is the upper limit interval of a two-tailed, 99% confidence level test on a sample size of 140 if the mean is 5.5 with a standard deviation of .82? Hint: use 2.33 as your z value.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 2 images
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