Red Cedar Manufacturing is interested in improving planning and control of its maintenance costs.

The controller has obtained hours worked and cost data for the past year and developed the following

regression output:

Constant

1,435.11

Std Err of Y Est

58.85

R

2

0.91

No. of Observations

12

X Coefficient(s)

4.94

Std Err of Coef.

0.19

What amount of total maintenance cost would the controller predict for a level of 660 hours worked?

$ ___________________

work must be shown