Consider the simple regression model yi = β0 +β1xi +i . the gauss-markov conditions hold and in addition i ∼ n(0, σ). construct a prediction interval for the average of m new observations of y for a given new x = xg (not one of the x1, . . , xn). note: for a fixed value of x = xg we predict yg1, yg2, . . , ygm.

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.

Ahighway between points a and b has been closed for repairs. an alternative route between there two locations is to travel between a and c and then from c to b what is the value of y and what is the total distance from a to c to b?