[問題] 請問有統計方法可以驗證"不具"線性相關嗎
初次發文,如有違規或需修改的地方請告知,謝謝。
一般情形來說如果想驗證兩個連續性變項之間具有線性相關的話,
是看Pearson相關係數(也就是r值),且虛無假設及對立假設的設法如下:
H0:ρ= 0 (兩者之間無線性相關)
H1:ρ≠0 (兩者之間有線性相關)
透過變異數分析檢定所得到的F值可以得知結果是否推翻虛無假設。
(以上為我個人理解,如有錯請指正)
不過我們家醫師今天拿了兩組數據給我,問我說是否有辦法驗證這兩個連續性變項之間並
無線性相關。
x1 = 0 x13 = 27 y1 = 16511 y13 = 16262
x2 = 1 x14 = 28 y2 = 21680 y14 = 22283
x3 = 0 x15 = 30 y3 = 28570 y15 = 34597
x4 = 22 x16 = 30 y4 = 34643 y16 = 40225
x5 = 14 x17 = 29 y5 = 25925 y17 = 25351
x6 = 0 x18 = 0 y6 = 16863 y18 = 18469
x7 = 0 x19 = 29 y7 = 15579 y19 = 16191
x8 = 0 x20 = 27 y8 = 16034 y20 = 17588
x9 = 0 x21 = 27 y9 = 16148 y21 = 18901
x10 = 0 x22 = 30 y10 = 16375 y22 = 16282
x11 = 0 x23 = 28 y11 = 13419 y23 = 14246
x12 = 0 x24 = 28 y12 = 14442 y24 = 14111
就我了解,如果想要得到兩者之間並無線性相關的結論的話,
虛無假設及對立假設應該就要反過來設,不過請問這樣的話有統計方法可以驗證嗎?
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