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The accompanying data file contains 20 observations for t and y t . Click here for the Excel Data File Use the 3-period moving average

The accompanying data file contains 20 observations for t and yt.

Click here for the Excel Data File

Use the 3-period moving average for making forecasts.

Note: Do not round intermediate calculations. Round final answers to 2 decimal places.

Use the in-sample forecast errors to compute MSE, MAD, and MAPE.

Note: Do not round intermediate calculations. Round final answers to 2 decimal places.

Make a forecast for period 21.

Note: Do not round intermediate calculations. Round final answer to 2 decimal places.

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