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i need C

Consider the following time series data. Quarter Year 1 Year 2 1 4 6 2 2 3 4 3 6 3 5 7 Year 3 7 6 6 9 (b) Show the four-quarter and centered moving average values for this time series. Year Quarter Time Series Value Four-Quarter Moving Average Centered Moving Average 1 4 2 2 3.75 1 3 3 4.25 4 4.375 4.5 4,750 5 5.125 5.25 5.375 5.5 5.875 6.25 6.375 6.5 6.75 7 3 1 2 3 4 1 2 3 4 6 6 3 5 7 7 6 6 9 > > > (c) Compute seasonal indexes and adjusted seasonal indexes for the four quarters. (Round your answers to three decimal places.) Quarter Seasonal Index Adjusted Seasonal Index 1 106.125 X 2 UU 3 4 5.563 X