Please help!!

Problem $3-2($Algo$)$

National Scan, Incorporated, sells radio frequency inventory tags. Monthly sales for a seven$-$month period were as follows:

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a$.$ Forecast September sales volume using each of the following:

The naive approach.

Naive approach

thousands

A five$-$month moving average.

Note: Round your answer to $2$ decimal places.

Moving average

thousands

A weighted average using $0\mathrm{.}65$ for August, $0\mathrm{.}15$ for July, and $0\mathrm{.}20$ for June.

Note: Round your answer to $2$ decimal places.

Weighted average

thousands

Exponential smoothing with a smoothing constant equal to $0\mathrm{.}30,$ assuming a March forecast of $18(000).$

Note: Round your intermediate forecast values and final answer to $2$ decimal places.

Forecast

thousands

A linear trend equation.

Note: Round your intermediate calculations and final answer to $2$ decimal places.

thousands