Question $11$

Given the following data and a $4-$period weighted moving average.

Supposed the weights of the four periods are $2,3,5,7$ for the OLDEST to NEWEST periods,

respectively. Compute the $4-$period weighted moving average in period $5.$

$17\mathrm{.}68$

$15\mathrm{.}82$

$12\mathrm{.}32$

$17\mathrm{.}29$

$16\mathrm{.}37$