首页 | 学习中心 | 注册 登录
返回列表 发帖
leadcfa

Rank: 2

UID
223325 
帖子
299 
主题
139 
注册时间
2011-7-11 
最后登录
2013-9-22 
1# 跳转到 » 倒序看帖
打印
tT
发表于 2013-4-2 12:58 | 只看该作者

Qbank #86575 - Seasonally Adjusted Models

following, adjusted
Which of the following is a seasonally adjusted model?
A) (Salest - Sales t-1)= b0 + b1 (Sales t-1 - Sales t-2) + b2 (Sales t-4 - Sales t-5) +
收藏 分享

profil

Rank: 2

UID
223393 
帖子
262 
主题
7 
注册时间
2011-7-11 
最后登录
2014-7-8 
2#
发表于 2013-4-2 12:59 | 只看该作者
It could be a monthly lagged model.

TOP

rohitdoshi

Rank: 2

UID
223380 
帖子
289 
主题
51 
注册时间
2011-7-11 
最后登录
2014-8-7 
3#
发表于 2013-4-2 13:01 | 只看该作者
hahaha i felt the same way when I hit this problem.. I was wondering if anyone would point it out. I was like “couldn’t you argue B is a lagged model as well?”
i wonder if someone else could enlighten this.

TOP

dreampak

Rank: 1

UID
223371 
帖子
191 
主题
41 
注册时间
2011-7-11 
最后登录
2014-8-6 
4#
发表于 2013-4-2 13:02 | 只看该作者
The question asked for an adjusted model, adjustments usually entail using a lagged term of some period to correct an observed effect, as seasonal in this case. B and C are simple lagged models. A adjusts t-1 and and 1-4 lags.

TOP

返回列表