Required: 1. Using the least-squares regression method, estimate the variable utilities cost per ton mined and the total fixed utilities cost per quarter. Express these estimates in the form Ya+bX. (Round the Variable cost per unit to 2 decimal places and Fixed Cost to til nearest whole dollar amount.)
Required: 1. Using the least-squares regression method, estimate the variable utilities cost per ton mined and the total fixed utilities cost per quarter. Express these estimates in the form Ya+bX. (Round the Variable cost per unit to 2 decimal places and Fixed Cost to til nearest whole dollar amount.)
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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Transcribed Image Text:Required information
The Hard Rock Mining Company is developing cost formulas for management planning and decision-making purposes.
The company's cost analyst has concluded that utilities cost is a mixed cost, and he is attempting to find a base that
correlates with the cost. The controller has suggested that tons mined might be a good base to use in developing a cost
formula. The production superintendent disagrees; she thinks that direct labor-hours would be a better base. The cost
analyst has decided to try both bases and has assembled the following information:
Quarter
Year 1:1
First
Second
Third
Fourth
Year 2:
First
Second
Third
Fourth
Direct
Tons Mined Labor-Hours
17,000
13,000
22,000
14,000
20,000
27,000
32,000
30,000
5,200
3,200
4,200
6,200
10,400
9,600
8,400
11,400
Utilities
Cost
$ 52,000
$ 47,000
$ 62,000
$ 77,000
$110,000
$115,000
$ 87,000
$124,000
Required:
1. Using the least-squares regression method, estimate the variable utilities cost per ton mined and the total fixed utilities cost per
quarter. Express these estimates in the form Ya+bX. (Round the Variable cost per unit to 2 decimal places and Fixed Cost to the
nearest whole dollar amount.)
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