The values of Alabama building contracts (in millions of dollars) for a 12-month period follow.

240 350 230 260 280 320 220 310 240 310 240 230 a. Construct a time series plot.

(a) What type of pattern exists in the data?

(b) Compare a three-month moving average forecast with an exponential smoothing forecast. Use alpha =0.2 Which provides the better forecasts based on MSE?

(c) What is the forecast for the next month?

i am unable to solve this problem

step-by-step explanation:

whats the question?

step-by-step explanation:

the answer is 62.8 cubic units

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph