Let X and Y denote the heights of blue spruce trees, measured in centimeters, growing in two large fields. We shall compare these heights by measuring 12 trees selected at random from each of the fields. Take a ≈ 0.05, and use the statistic W-the sum of the ranks of the observations of Y in the combined sample-to test the hypothesis Ho: mx = my against the alternative hypoth- esis H₁: mx < my on the basis of the following n₁ = 12 observations of X and n₂ = 12 observations of Y. x: 90.4 77.2 75.9 83.2 84.0 90.2 87.6 67.4 77.6 69.3 83.3 72.7 y: 92.7 78.9 82.5 88.6 95.0 94.4 73.1 88.3 90.4 86.5 84.7 87.5
Let X and Y denote the heights of blue spruce trees, measured in centimeters, growing in two large fields. We shall compare these heights by measuring 12 trees selected at random from each of the fields. Take a ≈ 0.05, and use the statistic W-the sum of the ranks of the observations of Y in the combined sample-to test the hypothesis Ho: mx = my against the alternative hypoth- esis H₁: mx < my on the basis of the following n₁ = 12 observations of X and n₂ = 12 observations of Y. x: 90.4 77.2 75.9 83.2 84.0 90.2 87.6 67.4 77.6 69.3 83.3 72.7 y: 92.7 78.9 82.5 88.6 95.0 94.4 73.1 88.3 90.4 86.5 84.7 87.5
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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Transcribed Image Text:Let X and Y denote the heights of blue spruce
trees, measured in centimeters, growing in two large
fields. We shall compare these heights by measuring 12
trees selected at random from each of the fields. Take
a ≈ 0.05, and use the statistic W-the sum of the ranks of
the observations of Y in the combined sample-to test the
hypothesis Ho: mx = my against the alternative hypoth-
esis H₁: mx < my on the basis of the following n₁ = 12
observations of X and n₂ = 12 observations of Y.
x: 90.4 77.2 75.9 83.2 84.0
90.2
87.6
67.4
77.6
69.3
83.3
72.7
y:
92.7
78.9
82.5
88.6
95.0
94.4
73.1 88.3 90.4
86.5 84.7
87.5
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