a$.$ Use the $3-$period moving average to forecast sales for the $31$st week. Note: Do not round intermediate calculations. Round final answer to $2$ decimal places.

$\backslash$table$[[hat(y{)}_t=,5348\mathrm{.}45]]$

b$.$ Use simple exponential smoothing with $a=0\mathrm{.}3$ to forecast sales for the $31$st week.

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

hat$(y{)}_t=,5362\mathrm{.}18$

c$-1.$ Report the performance measures for the techniques in parts a and b$.$

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

$\backslash$table$[[$Technique$,$MSE,MAD,MAPE $(\%)],[$Moving average,,,$],[$Exponential smoothing,,,$]]$