Let X and Y equal the yield strength (in MPa) of two different steels. The following data were collected (n = 12 observations of X and m = 10 observations of Y): x: 133.5 137.2 136.3 133.3 137.5 135.4 138.4 137.1 136.5 139.4 137.9 136.8 y: 134.0 134.7 136.0 132.7 134.6 135.2 135.9 135.6 135.8 134.2 (a) Construct a 95% confidence interval for µx -μy, assuming that the distributions of X and Y areN(μx, o) and N(Hy, o), respectively. (b) Construct box plots of the two sets of data on the same graph. Do the means seem to be equal or different?
Let X and Y equal the yield strength (in MPa) of two different steels. The following data were collected (n = 12 observations of X and m = 10 observations of Y): x: 133.5 137.2 136.3 133.3 137.5 135.4 138.4 137.1 136.5 139.4 137.9 136.8 y: 134.0 134.7 136.0 132.7 134.6 135.2 135.9 135.6 135.8 134.2 (a) Construct a 95% confidence interval for µx -μy, assuming that the distributions of X and Y areN(μx, o) and N(Hy, o), respectively. (b) Construct box plots of the two sets of data on the same graph. Do the means seem to be equal or different?
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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