Magnano Inc.’s inspection costs are listed below:

Units Produced

Inspection Costs

February

927

$4579

March

948

$4645

April

968

$4701

May

911

$4538

June

958

$4676

July

894

$4475

August

974

$4760

September

878

$4412

Management believes that inspection cost is a mixed cost that depends on units produced.

Using the least squares regression method, the estimate of the variable component of inspection cost per unit produced is closest to (Do not round intermediate calculations. Round your final answer to 2 decimal places.):

$3.28
$3.33
$4.72
$3.30

Using the least squares regression method, the estimate of the fixed component of inspection cost per month is closest to (Do not round intermediate calculations.):

$4,604
$4,789
$1,494
$1,522