An important application of regression analysis in accounting is in the estimation of cost. By collecting data on volume and cost and using the least squares method to develop an estimated regression equation relating volume and cost, an accountant can estimate the cost associated with a particular manufacturing volume. Consider the following sample of production volumes and total cost data for a manufacturing operation. Production Volume (units) Total Cost ($) 400 4200 450 4700 500 5100 600 5500 700 6500 750 7000 The data on the production volume æ and total cost y for particular manufacturing operation were used to develop the estimated regression equation
An important application of regression analysis in accounting is in the estimation of cost. By collecting data on volume and cost and using the least squares method to develop an estimated regression equation relating volume and cost, an accountant can estimate the cost associated with a particular manufacturing volume. Consider the following sample of production volumes and total cost data for a manufacturing operation. Production Volume (units) Total Cost ($) 400 4200 450 4700 500 5100 600 5500 700 6500 750 7000 The data on the production volume æ and total cost y for particular manufacturing operation were used to develop the estimated regression equation
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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
Transcribed Image Text:An important application of regression analysis in accounting is in the estimation of cost. By collecting data on volume and cost and using the least squares
method to develop an estimated regression equation relating volume and cost, an accountant can estimate the cost associated with a particular manufacturing
volume. Consider the following sample of production volumes and total cost data for a manufacturing operation.
Production Volume (units)
Total Cost ($)
400
4200
450
4700
500
5100
600
5500
700
6500
750
7000
The data on the production volume x and total cost y for particular manufacturing operation were used to develop the estimated regression equation
ŷ = 1206.78 + 7.58x.
a. The company's production schedule shows that 550 units must be produced next month. Predict the total cost for next month.
ŷ*
(to 2 decimals)
b. Develop a 98% prediction interval for the total cost for next month.
(to 2 decimals)
t-value
(to 3 decimals)
Spred
(to 2 decimals)
Prediction Interval for an individual Value next month
) (to whole number)
c. If an accounting cost report at the end of next month shows that the actual production cost during the month was $6,000, should managers be concerned
about incurring such a high total cost for the month? Discuss.
Based
one month, $6,000 | is not
outside the upper limit of the prediction interval. A sequence of five to seven months with
consistently high costs should cause concern.
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