Chapter 13.3, Problem 16E

(a)

To determine

The gas production for a well-treated with 3 thousand gallons of fluid and 7 thousand pounds of sand.

(b)

To determine

The amount by which predictions of production differ if fluid differs by 2 units.

(c)

To determine

Whether the model is useful or not at $\alpha =0.01$ level.

(d)

To determine

The amount of variation in the gas production explained by the model

(e)

To determine

The test, $H_0:{\beta }_1=0$ v/s $H_1:{\beta }_1\ne 0$ at $\alpha =0.01$ level and conclude the result.

(f)

To determine

The test, $H_0:{\beta }_2=0$ v/s $H_1:{\beta }_2\ne 0$ at $\alpha =0.05$ level and conclude the result.