QUESTION 32 (b) Compute the mean squared error (MSE) of the moving average. QUESTION 33 (c) Predict the value of y(t) for t = 8 using the moving average.QUESTION 34 (d) Briefly explain how you would model a seasonal time series without a trend.QUESTION 31 Part B: Question 4 You have the following time series data: y(t) Moving average (k = 3) Forecast error Squred error 4.0 2 5.0 3 3.5 1 + 4.5 5 3.0 ? 6 5.1 ? 7 4.3 2 ? MSE ? (a) Using k=3, computing the k-moving average values for t=4, t = 5, t = 6, and t = 7. (2 marks)