NO.PZ201709270100000506
问题如下:
6. Based on the regression output in Exhibit 3 and sales data in Exhibit 4, the forecasted value of quarterly sales for March 2016 for PoweredUP is closest to:
选项:
A.$4.193 billion.
B.$4.205 billion.
C.$4.231 billion.
解释:
C is correct. The quarterly sales for March 2016 is calculated as follows:
这里EXIBIT3的AUTOCORRELATION指的是什么?能具体说一下么?怎么这LAG4是不显著的,而上面EXIBIT2中的LAG4是显著的?