13 Computer output for fitting a simple linear model is given below. State the value of the sample slope for the given model. In testing if the slope in population is different from zero, identify the p-value and use it (and a 5% significance level to make a clear conclusion about the effectiveness of the model

The regression equation is Y =9.1- 8.7

Predictor Coef SE Coef T P

Constant 91.142 4.624 19.71 0.000

X - 8.7063 1.0159 -8.57 0.000

Sample slope:

P-value:

Is the model effective