Question

What is the slope of the regression line? Round your answer to one decimal place. What...

What is the slope of the regression line? Round your answer to one decimal place.

What is the intercept of the regression line? Round your answer to one decimal place.

What is forecasted demand in period 19? Round your answer to one decimal place

Demand

data

2598

2906

3445

5603

7097

7088

3056

3468

3899

7155

8869

8980

3580

3545

4177

6847

8768

9575

0 0
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Answer #1

We prepare the regression line in excel as shown below:

12000 10000 8000 6000 y 234.92x +3360.3 4000 2000 10 -5 10 15 20 25

The table is updated as shown as:

2110987765433210998 50 83: 3 5 1 2 357 556 5 1 2 2 x1234567|8911 12 13 14 15 16 17 0 5

As seen from above, the equation is Y=234.92X + 3360.3

As seen from equation and comparing with y=mx + c where m is slope

The slope of equation = 234.9

The y intercept is 3360.3

Substituting x = 19, we get Y = 7823.8.

Hence, forecasted demand in period 19 is 7823.8

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