Tuesday, January 22, 2013

Session 3

ASSIGNMENT 1
(a) Using milage-groove data, fit 'lm' and comment on the application of 'lm'
>>Plot residual vs independent
>>Standardized vs independent
>>qqplot and  qqline


As it is type 2 ,parabolic, we will not be able to do regression.

qqplot and qqline




(b) Using alpha-pluto.


As it is randomplot, thus we can have regression here.
 qqplot and qqline


residual value


ASSIGNMENT 2
Calculate P value


P value =0.687
as p value is more than 5%, we accept the null hypothesis .


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