A new production process is being contemplated for the manufacture of stainless steel bearings. Measurements of the diameters of random samples of bearings from the old and the new processes produced the following data: Old: 16.3 15.9 15.8 16.2 16.1 16.0 15.7 15.8 15.9 16.1 16.3 16.1 15.8 15.7 15.8 15.7 New: 15.9 16.2 16.0 15.8 16.1 16.1 15.8 16.0 16.2 15.9 15.7 16.2 15.8 15.8 16.2 16.3 Can you conclude at the 5% level that one process yields a different mean size bearing than the other? a. b. Can you conclude at the 5% level that the variance of the new procedure is lower than the older procedure?

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
A new production process is being contemplated for the manufacture of stainless steel
bearings. Measurements of the diameters of random samples of bearings from the old and
the new processes produced the following data:
Old:
16.3 15.9 15.8 16.2 16.1 16.0
15.7 15.8 15.9 16.1 16.3 16.1
15.8 15.7 15.8 15.7
New:
15.9 16.2 16.0 15.8 16.1 16.1
15.8 16.0 16.2 15.9 15.7 16.2
15.8 15.8 16.2 16.3
Can you conclude at the 5% level that one process yields a different mean size bearing
than the other?
a.
b.
Can you conclude at the 5% level that the variance of the new procedure is lower than
the older procedure?
Transcribed Image Text:A new production process is being contemplated for the manufacture of stainless steel bearings. Measurements of the diameters of random samples of bearings from the old and the new processes produced the following data: Old: 16.3 15.9 15.8 16.2 16.1 16.0 15.7 15.8 15.9 16.1 16.3 16.1 15.8 15.7 15.8 15.7 New: 15.9 16.2 16.0 15.8 16.1 16.1 15.8 16.0 16.2 15.9 15.7 16.2 15.8 15.8 16.2 16.3 Can you conclude at the 5% level that one process yields a different mean size bearing than the other? a. b. Can you conclude at the 5% level that the variance of the new procedure is lower than the older procedure?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 6 steps with 6 images

Blurred answer
Similar questions
  • SEE MORE 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