Monday
August 31, 2015

Homework Help: Statistics

Posted by Chris on Wednesday, March 17, 2010 at 1:40am.

Choose the right answer, and provide the reasons and calculations.

A palmist claims that he can accurately predict the age at death (y) of an individual from the length
(centimeters) of age line (x) on the right hand of the individual. A random sample of 20 dead
individuals from the database maintained by the palmist gave SSyy=2160 and SSxx=28.and the point
prediction ŷ = 45 + 3.5x to predict the age at death. The claim of the palmist can be accepted only at
i. α=0.01 ii. α=0.05 iii. α=0.1 iv. None of them

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