Cortez Company is planning to introduce a new product that will
sell for $106 per unit. The following manufacturing cost estimates
have been made on 20,000 units to be produced the first year:
Manufacturing overhead costs have not yet been estimated for the
new product, but monthly data on total production and overhead
costs for the past 24 months have been analyzed using simple linear
regression. The following results were derived from the simple
regression and provide the basis for overhead cost estimates for
the new product.
Required:
a. What percentage of the variation in overhead costs is explained by the independent variable?
b. What is the total overhead cost for an estimated activity level of 70,000 direct labor-hours?
e. What is the manufacturing cost equation implied by these results?
Direct materials | $ | 800,000 | |
Direct labor | 480,000 | (= $16 per hour × 30,000 hours) | |
Simple Regression Analysis Results | |||
Dependent variable—Factory overhead costs | |||
Independent variable—Direct labor-hours | |||
Computed values | |||
Intercept | $ | 130,000 | |
Coefficient on independent variable | $ | 6.00 | |
Coefficient of correlation | .926 | ||
R2 | .857 | ||
a. What percentage of the variation in overhead costs is explained by the independent variable?
-
85.70%
-
94.30%
-
102.80%
-
77.10%
-
None of the above
b. What is the total overhead cost for an estimated activity level of 70,000 direct labor-hours?
-
$550,000
-
$560,000
-
$540,000
-
$570,000
-
None of the above
-
$73.00
-
$80.00
-
$88.00
-
$66.00
-
None of the above
-
$33.00
-
$36.00
-
$40.00
-
$30.00
-
None of the above
e. What is the manufacturing cost equation implied by these results?
-
Total cost = $480,000 + ($6.00 × Number of units)
-
Total cost = $130,000 + ($106.00 × Number of units)
-
Total cost = $130,000 + ($16.00 × Number of units)
-
None of the above