For the data $(0,1000),(1,1500),(2,2000),(3,2500),(4,3000),(5,3500)$, where the first number in parenthesis is $t$ and the second number is the actual demand, if we fit a trend line of the form $y t=a+b t$, the line may be called
A) a good fit
B) an above average fit
C) a poor fit
D) a perfect fit
E) can not tell

Question

Quizplus · Accepted Answer

The trend line $y = a + bt$ perfectly fits the data because the actual demand increases by a constant amount (500) as $t$ increases by 1, which is characteristic of a linear relationship with no deviations.

For the Data (0,1000),(1,1500),(2,2000),(3,2500),(4,3000),(5,3500)(0,1000),(1,1500),(2,2000),(3,2500),(4,3000),(5,3500)(0,1000),(1,1500),(2,2000),(3,2500),(4,3000),(5,3500) , Where the First Number in Parenthesis Is

For the Data $(0,1000),(1,1500),(2,2000),(3,2500),(4,3000),(5,3500)$ , Where the First Number in Parenthesis Is