Leslie Sporting Goods is a locally owned store that specializes in printing team jerseys. The majority of its business comes from orders for various local teams and organizations. While Leslies prints everything from bowling team jerseys to fraternity/sorority apparel to special event shirts, summer league baseball and softball team jerseys are the companys biggest source of revenue. A portion of Leslies operating information for the companys last year follows:

Month. Jerseys Printed. Operating Cost

January. 215. $5,875

February. 210. 5,745

March. 230. 5,930

April. 515 8,630

May. 680. 9,700

June. 650. 9,255

July. 455. 6,225

August. 370. 6,165

September. 290. 6,035

October. 235. 5,980

November. 205. 4,975

December 180. 4,845

Required: 3. Using the high-low method, calculate the stores total fixed operating costs and variable operating cost per jersey. 4. Using the high-low method results, calculate the stores expected operating cost if it printed 420 jerseys. 5. Perform a least-squares regression analysis on Leslies data. 6. Using the regression output, create a linear equation (y = a + bx) for estimating Leslies operating costs. 7. Using the least-squares regression results, calculate the stores expected operating cost if it prints 610 jerseys.