Chapter 11.3, Problem 11.32LM

Calculate SSE and s² for each of the following cases:

a.

     $n=20,S{S}_{yy}=95,S{S}_{xy}=50,{\hat{\beta }}_1=.75$

b.

     $n=40,{\displaystyle {\sum }_{y^2}=860,{\displaystyle {\sum }_y=50,S{S}_{xy}=2,700,\widehat{{\beta }_1}}}=.2$

c.

     $n=40,{{\displaystyle \sum \left(y_i-\bar{y}\right)}}^2=58,S{S}_{xy}=91,S{S}_{xy}=170$