Homework Help is Here – Start Your Trial Now!
Math
Statistics
The Turbine Oil Oxidation Test (TOST) and the Rotating Bomb Oxidation Test (RBOT) are two different procedures for evaluating the oxidation stability of steam turbine oils. An article reported the accompanying observations on x = TOST time (hr) and y RBOT time. (min) for 12 oil specimens. TOST 4200 3575 340 RBOT 370 TOST RBOT 3750 375 3700 4050 2795 195 315 350 4870 4475 3450 2725 400 375 285 220 3750 345 3275 290 (a) Calculate the value of the sample correlation coefficient. (Round your answer to four decimal places.) r= Interpret the value of the sample correlation coefficient. O The value of r indicates that there is a strong, negative linear relationship between TOST and RBOT. O The value of r indicates that there is a strong, positive linear relationship between TOST and RBOT. O The value of r indicates that there is a weak, negative linear relationship between TOST and RBOT. O The value of r indicates that there is a weak, positive linear relationship between TOST and RBOT. (b) How would the value of r be affected if we had let x = RBOT time and y = TOST time? O The value of r would be multiplied by -1. O The value of r would decrease. O The value of r would increase. O The value of r would remain the same. (c) How would the value of r be affected if RBOT time were expressed in hours? O The value of r would decrease. O The value of r would increase.

The Turbine Oil Oxidation Test (TOST) and the Rotating Bomb Oxidation Test (RBOT) are two different procedures for evaluating the oxidation stability of steam turbine oils. An article reported the accompanying observations on x = TOST time (hr) and y RBOT time. (min) for 12 oil specimens. TOST 4200 3575 340 RBOT 370 TOST RBOT 3750 375 3700 4050 2795 195 315 350 4870 4475 3450 2725 400 375 285 220 3750 345 3275 290 (a) Calculate the value of the sample correlation coefficient. (Round your answer to four decimal places.) r= Interpret the value of the sample correlation coefficient. O The value of r indicates that there is a strong, negative linear relationship between TOST and RBOT. O The value of r indicates that there is a strong, positive linear relationship between TOST and RBOT. O The value of r indicates that there is a weak, negative linear relationship between TOST and RBOT. O The value of r indicates that there is a weak, positive linear relationship between TOST and RBOT. (b) How would the value of r be affected if we had let x = RBOT time and y = TOST time? O The value of r would be multiplied by -1. O The value of r would decrease. O The value of r would increase. O The value of r would remain the same. (c) How would the value of r be affected if RBOT time were expressed in hours? O The value of r would decrease. O The value of r would increase.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
100%
The Turbine Oil Oxidation Test (TOST) and the Rotating Bomb Oxidation Test (RBOT) are two different procedures for evaluating the oxidation stability of steam turbine oils. An article reported the accompanying observations on x = TOST time (hr) and y = RBOT time (min) for 12 oil specimens. TOST RBOT TOST RBOT 4200 370 3575 340 3750 3700 4050 350 375 315 4870 4475 3450 2725 400 375 285 220 3750 345 2795 195 3275 290 (a) Calculate the value of the sample correlation coefficient. (Round your answer to four decimal places.) r = Interpret the value of the sample correlation coefficient. O The value of r indicates that there is a strong, negative linear relationship between TOST and RBOT. O The value of r indicates that there is a strong, positive linear relationship between TOST and RBOT. The value of r indicates that there is a weak, negative linear relationship between TOST and RBOT. O The value of r indicates that there is a weak, positive linear relationship between TOST and RBOT. (b) How would the value of r be affected if we had let x = RBOT time and y = TOST time? O The value of r would be multiplied by -1. The value of r would decrease. O The value of r would increase. O The value of r would remain the same. (c) How would the value of r be affected if RBOT time were expressed in hours? O The value of r would decrease. The value of r would increase. The value of r would be multiplied by -1. O The value of r would remain the same.
Transcribed Image Text:The Turbine Oil Oxidation Test (TOST) and the Rotating Bomb Oxidation Test (RBOT) are two different procedures for evaluating the oxidation stability of steam turbine oils. An article reported the accompanying observations on x = TOST time (hr) and y = RBOT time (min) for 12 oil specimens. TOST RBOT TOST RBOT 4200 370 3575 340 3750 3700 4050 350 375 315 4870 4475 3450 2725 400 375 285 220 3750 345 2795 195 3275 290 (a) Calculate the value of the sample correlation coefficient. (Round your answer to four decimal places.) r = Interpret the value of the sample correlation coefficient. O The value of r indicates that there is a strong, negative linear relationship between TOST and RBOT. O The value of r indicates that there is a strong, positive linear relationship between TOST and RBOT. The value of r indicates that there is a weak, negative linear relationship between TOST and RBOT. O The value of r indicates that there is a weak, positive linear relationship between TOST and RBOT. (b) How would the value of r be affected if we had let x = RBOT time and y = TOST time? O The value of r would be multiplied by -1. The value of r would decrease. O The value of r would increase. O The value of r would remain the same. (c) How would the value of r be affected if RBOT time were expressed in hours? O The value of r would decrease. The value of r would increase. The value of r would be multiplied by -1. O The value of r would remain the same.
(d) Construct a normal probability plot for TOST time. TOST (hr) 5000 4500 4000 3500 3000 TOST (hr) 5000 4500 4000 3500 3000 -1 -1 0 0 1 1 2 Z Z 2 TOST (hr) 5000 O 4500 4000 3500 3000 -1 TOST (hr) 5000 4500 E 4000 3500 3000 -1 0 0 1 1 2 2 Z Z
Transcribed Image Text:(d) Construct a normal probability plot for TOST time. TOST (hr) 5000 4500 4000 3500 3000 TOST (hr) 5000 4500 4000 3500 3000 -1 -1 0 0 1 1 2 Z Z 2 TOST (hr) 5000 O 4500 4000 3500 3000 -1 TOST (hr) 5000 4500 E 4000 3500 3000 -1 0 0 1 1 2 2 Z Z
Expert Solution
steps

Step by step

Solved in 5 steps with 23 images

SEE SOLUTIONCheck out a sample Q&A here
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
SEE MORE TEXTBOOKS