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4: (10 marks) An experiment was conducted to determine the relationship between tem nd wear rate at the hore surface of the barrel at or near the commencement of rifling. The d or wear rate of propellant (m/s) and the maximum bore temperature (Cº) were recorded Temperatures C 975 960 950 965 855 830 815 805 725 wear rate (m/s) 0.1 0.097 0.078 0.1 0.065 0.055 0.045 0,029 0.028 alculate: the sample correlation coefficient r of the wear rate, then decide whether the relationship eak moderate or strong

4: (10 marks) An experiment was conducted to determine the relationship between tem nd wear rate at the hore surface of the barrel at or near the commencement of rifling. The d or wear rate of propellant (m/s) and the maximum bore temperature (Cº) were recorded Temperatures C 975 960 950 965 855 830 815 805 725 wear rate (m/s) 0.1 0.097 0.078 0.1 0.065 0.055 0.045 0,029 0.028 alculate: the sample correlation coefficient r of the wear rate, then decide whether the relationship eak moderate or strong

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
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Q4: (10 marks)) An experiment was conducted to determine the relationship between temperatures and wear rate at the hore surface of the barrel at or near the commencement of rifling. The data below for wear rate of propellant (m/s) and the maximum bore temperature (Cº) were recorded Temperatures C 975 960 950 965 855 830 815 805 725 675 wear rate (m/s) 0.1 0.097 0.078 0.1 0.065 0.055 0.045 0,029 0.028 0.02 Calculate: a) the sample correlation coefficient r of the wear rate, then decide whether the relationship is weak, moderate or strong b) linear regression equation c) Estimate the wear rate if maximum bore temperature is 900 Cº.
Transcribed Image Text:Q4: (10 marks)) An experiment was conducted to determine the relationship between temperatures and wear rate at the hore surface of the barrel at or near the commencement of rifling. The data below for wear rate of propellant (m/s) and the maximum bore temperature (Cº) were recorded Temperatures C 975 960 950 965 855 830 815 805 725 675 wear rate (m/s) 0.1 0.097 0.078 0.1 0.065 0.055 0.045 0,029 0.028 0.02 Calculate: a) the sample correlation coefficient r of the wear rate, then decide whether the relationship is weak, moderate or strong b) linear regression equation c) Estimate the wear rate if maximum bore temperature is 900 Cº.
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