每日一练
发布时间：2017-07-07 
今天给大家带来的每日一练，是来自ACCA考试F2基础测试题：Forecasting，记得做完在下拉看答案哦~
Question：Monthly sales have been found to follow a linear trend of y=9.82+4.372x,where y is the number of items sold and x is the number of the month.Monthly deviations from the trend have been calculated and follow an additive model.In month 24,the seasonal variation is estimated to be plus 8.5.
What is the forecast number of items to be sold in month 24?(to the nearest whole number.)
A.123
B.115
C.152
D.106
自己先做~
做完之后滑这儿，就能对答案
The correct answer is: A
解析：
y = 9.82 + (4.372 × 24)
y = 114.748
forecast = 114.748 + 8.5
= 123.248
= 123
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