Data from a one-way layout are given in Table 2.8. The response is the muzzle velocity (in feet per second) of mortar-like antipersonnel weapon. The quan- titative factor is the discharge hole area (in square inches), which has four levels in the experiment. An inverse relationship between muzzle velocity and discharge hole area was expected because a smaller hole would increase the pressure pulse of the propellant gases. Analyze the data in two ways: {a} by treating it as a one-way layout and using an F test and multiple com- parisons; {b} by using orthogonal polynomials to model the linear and quadratic effects. (Note: These data are obtained by collapsing and adapting three-way layout data given in an exercise in Chapter 3.)