3. 10 Gator Beach Marts, a chain of convenience grocery stores in the Fort Lauderdale area, has store hours that fluctuate from month to month as the tourist trade in the community varies The utility costs for one of the company's stores are listed below for the past six months Required: Use the high-low method to estimate the cost behavior for the store's utility costs. Express the cost behavior in formula form Y = a + b ). 14. What is the variable utility cost per hour of operation? Use least-squares regression to estimate the cost behavior for the store's utility cost Express the cost behavior in formula form. (Y a+bX. Do not round intermediate calculations. Round coefficient of Xto 2 decimal places and other answer to the nearest whole dollar amount.) 3What is the variable utility cost per hour of operation? (Round your answer to 2 decimal places.) During July, the store will be open 300 hours, Predict the store's total utility cost for July using each of the cost estimation methods employed in requirements (1) and (3) Gator Beach Marts, a chain of the Fort Lauderdale area, has month to month as the tourist The utility costs for one of the below for the past six months. Total Hours of Operation 550 600 Month January February March April May June 700 Total Utility Cost $3,240 3,400 3,800 3,200 2,700 2,600 500 Required: 1-a. Use the high-low method to the store's utility costs. Exp form (Y= a + bx). Monthly utility cost = $ 1.000 1-b. What is the variable utility