Question $13$ options:

Use a TSD forecasting model with the following paramters

Period $172$ was a January

Si $=$

Month

Si

Jan

$0\mathrm{.}38$

Feb

$0\mathrm{.}46$

Mar

$0\mathrm{.}67$

Apr

$0\mathrm{.}90$

May

$1\mathrm{.}29$

Jun

$1\mathrm{.}45$

Jul

$1\mathrm{.}60$

Aug

$1\mathrm{.}71$

Sep

$1\mathrm{.}50$

Oct

$1\mathrm{.}20$

Nov

$0\mathrm{.}45$

Dec

$0\mathrm{.}39$

Trend $=$

int

$960,675\mathrm{.}00$

p

$16,115\mathrm{.}00$

p$2$

$(160\mathrm{.}00)$

p$3$

$0\mathrm{.}64$

where,

p$=$ time period

What is the Seasonally adjusted $($SA$,$ trend$)$ forecast for time period $173?$

No decimal places or commas

What is the forecast for time period $173$ including seasonality?

No decimal places or commas