Given the following data, use least-squares regression to derive a trend equation:

Period	1	2	3	4	5	6
Demand	10	11	7	7	9	13

Part 2

The least-squares regression equation that shows the best relationship between demand and period is (round your responses to two decimal places):

y=8.59 +0.26x

where

y=Demand

and

x=Period.

Part 3

What is your estimate of the demand in period 7?

Estimated demand in period 7 is

10.41

(round your response to two decimal places).

*Part 4

What is your estimate of the demand in period 12?

Estimated demand in period 12 is

enter your response here

(round your response to two decimal places).