Using the time series data in the table, respond to the following items.

Period Sales

$1$ $ $1,001$

$21,129$

$3843$

$41,044$

$51,012$

$6703$

$7682$

$8712$

$9646$

$10686$

$11909$

$12469$

$13566$

$14488$

$15688$

$16675$

$17303$

$18381$

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d$-1.$ Compute all possible forecasts using a trend forecasting model using simple linear regression? $($Round your answers to $2$ decimal places.$)$

d$-2.$ What is the MAD? $($Round your answer to $2$ decimal places.$)$

d$-3.$ What is the trend equation based on the regression analysis? $($Round your answers to $2$ decimal places.$)$

e$.$ What is the predicted annual change of industry sales? $($Round your answer to $2$ decimal places.$)$

f$.$ Predict sales for the next three periods. $($Round your answers to $2$ decimal places.$)$