The data on retail price and energy cost for 10 large side-by-side refrigerators is in the table below. Using excel answer the following questions. reproduced a. Give the equation of a straight-line model relating retail price y to energy cost x. b. Using excel estimate the slope and y-intercept of the line. Paste the results from excel. c. Write the equation of the least squares line. d. Use the least squares line to predict the retail price of a refrigerator with an energy cost of $80 per year. Brand Maytag MTB2156B Amana TR21V2 Kenmore (Sears) 7820 Whirlpool Gold GT22DXXG GEProfile TBX22PRY KitchenAid Prestige KTRP22KG Whirlpool ET21PKXG GE TBX22ZIB Frigidaire Gallery FRT20NGC Hotpoint CTX21DIB Price ($) 850 760 900 870 1100 800 650 750 750 570 Energy Cost per Year ($) 48 54 58 66 77 66 70 81 72 78

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