Jorgenson Corporation has provided the following data for the first five months of the year: Machine Lubrication Cost Hours January 240 $ 1,500 February 320 $ 1,600 March 400 $ 1,740 April 300 $ 1,580 May 340 $ 1,680 Using the least-squares regression method of analysis, the estimated variable lubrication cost per machine hour is closest to: Multiple Choice О $1.40 $1.56 $0.80

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