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DATA INPUT
Hours of
Month Operation Utility Cost
January 550 3,240$
February 600 3,400
March 700 3,800
April 500 3,200
May 450 2,700
June 400 2,600
SOLUTION
3. Least- squares regression:
Fixed- and variable-cost components:*
Monthly fixed cost (intercept): 1,002$
4. Cost prediction:
