Is there anything wrong with the following weights: $!=0\mathrm{.}9,!"$# $=0\mathrm{.}2,!"$$ $=0\mathrm{.}1$

for using a WMA $($weighted moving average$)$ forecast?

Answer:

$2.$ Shoreline Park in Mountain View, California, has kept close tabs on the number of

patrons using the park since its opening in January $1993.$ For the first six months of

operation, the following figures were recorded: