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I need (C)

Consider the following time series data. Quarter Year 1 Year 2 1 6 2 2 3 3 4 6 (a) Construct a time series plot. 1 2 3 4 Year 1 3 5 7 Year 3 7 6 6 9 1 2 3 4 Year 3 1 2 3 4 Year 2 Year/Quarter Time Series Value 54321 1234 Year 1 2 3 4 Year 2 Year/Quarter 1 1 2 3 4 Year 3 (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 3.75 1 4.25 45 5 5.25 5.5 6.25 6.5 2 3 4 1 2 3 4 1 2 3 4 2 3 6 6 3 $ 7 7 6 6 9 7 > 4.375 4.750 5.125 5.375 5,875 6.375 6.75 (c) Compute seasonal indexes and adjusted seasonal indexes for the four quarters. (Round your answers to thr mal places.) Quarter Seasonal Index Adjusted Seasonal Index 5.563 X 2 3 4 5.563 X