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The Hard Rock Mining Company wants to separate its utilities cost into variable and fixed elements for planning purposes. The controller believes tons mined might
The Hard Rock Mining Company wants to separate its utilities cost into variable and fixed elements for planning purposes. The controller believes tons mined might be a good base for developing a cost formula. The production superintendent disagrees; she thinks direct laborhours would be a better base. Quarterly data for tons mined, direct laborhours, and utilities cost are as follows:
Quarter Tons Mined Direct LaborHours Utilities Cost
Year :
First $
Second $
Third $
Fourth $
Year :
First $
Second $
Third $
Fourth $
b Using the leastsquares regression method, estimate the variable utilities cost per ton mined and the total fixed utilities cost per quarter. Express these estimates in the form Y a bX
Note: Round the Variable cost per unit to decimal places and Fixed Cost to the nearest whole dollar amount.
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