A computer manufacturer has developed a regression model relating sales (y in $10,000) with three independent variables.

A computer manufacturer has developed a regression model relating sales (y in $10,000) with three independent variables.  The three independent variables are price (in dollars), competitors price (in dollars), and advertising (in $1000).  art of the regression results are shown below.

How do I calculate the p value and the test statistic for the variable in advertising (could you please show steps)  THANKS!!!