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MINDTAP

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: Chapter $15$ Assignment

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Exercise $15\mathrm{.}13$ Algo $($Multiple Coefficient of Determination$)$

Hint$($s$)$

Chec

The following estimated regression equation is based on $30$ observations.

hat$(y)=17\mathrm{.}4+3\mathrm{.}6x_1-2x_2+7\mathrm{.}6x_3+2\mathrm{.}7x_4$

The values of SST and SSR are $1,800$ and $1,755,$ respectively.

a$.$ Compute $R^2($to $3$ decimals$).$

b$.$ Compute $R_a^2($to $3$ decimals$).$

c$.$ Comment on the goodness of fit.

The estimated regression equatio