An analysis of overhead costs for Bad Co. using regression analysis produced the following output:

Constant 150

Std. Err of Y Est 45

R²0.78

No. Of Observations 60

Degrees of Freedom 57

X₁Coefficient (setup hrs) 25

X₂Coefficient (# of parts) 100

1. Write the cost function pertaining to this data:_________________________________

2. Construct control limits for the predicted overhead cost, using 1.96 standard deviations, when setup hours is 10 and number of parts is 50:

$ _______________ to $_________________