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IME SERIES DATA ANALYSIS a) Compute the trend values using the moving average method. b) Forecast the index number of the retail price for the 3nd quarter of 2019 . c) Plot the time series & trend values. a) Compute the trend values for the data above by using the least square method. b) Estimate the sales for the 1" quarter of 2019. c) Plot the time series \& trend values. The operating cost of Techno Ent. For each quarter for the years 2016 through 2018 is shown as per elow. a) Find the trend equation by using least square method and calculate the trend values from the trend equation (correct to 3 decimal points) b) Forecast the sales for 2ad quarter of 2019 . c) Draw the time series \& trend values