Given the following quantities, find the sample correlation coefficient, r, and test H0 : = 0
Question:
Given the following quantities, find the sample correlation coefficient, r, and test H0 : ρ = 0 at the indicated level.
(a) n = 27, (Yi −Y¯)
2 = 100, (Xi −X¯)
2 = 625,
(Xi −X¯)(Yi −Y¯) = 200, α = .01.
(b) n = 5, (Yi −Y¯)
2 = 16, (Xi −X¯)
2 = 25,
(Xi −X¯)(Yi −Y¯) = 10, α = .05.
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Related Book For
Basic Statistics Understanding Conventional Methods And Modern Insights
ISBN: 9780195315103
1st Edition
Authors: Rand R. Wilcox
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