Additional Problem $03-02($Algo$)$

Given the following demand data,

$\backslash$table$[[$Period$,$Demand$],[1,41],[2,38],[3,43],[4,39],[5,46]]$

a$.$ Compute a weighted average forecast using a weight of $0\mathrm{.}5$ for the most recent period, $0\mathrm{.}2$ for the next most recent, $0\mathrm{.}2$ for the next, and $0\mathrm{.}1$ for the next.

Note: Round all your answers to two decimal points.

$\backslash$table$[[$Forecast Period $5,43\mathrm{.}20],[$Forecast Period $6,41\mathrm{.}80]]$

b$.$ If the actual demand for period $6$ is $41,$ forecast demand for period $7$ using the same weights as in part a$.$

Please help not sure I did correctly and I am confused