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 Leslie prints everything from bowling team jerseys to fraternity/sorority apparel to special event shirts, summer league baseball and softball team jerseys are the company's biggest source of revenue. A portion of Leslie's operating information for the company's last year follows: Number of Operating Month Jerseys Printed Cost January 190 $5,850 February 185 5,800 March 270 5,940 April 545 8,689 May 700 9,700 June 610 9,280 July 425 6,215 August 355 6, 140 September 290 6,035 October 270 5,960 November 175 4,960 December 165 4,885 Required: 3. Using the high-low method, calculate the store's total fixed operating costs and variable operating cost per jersey, 4. Using the high-low method results, calculate the Leslie's expected operating cost if it printed 455 jerseys 5. Perform a least-squares regression analysis on Leslie's data. 6. Using the regression output, create a linear equation (y = a + b) for estimating Leslie's operating costs. 7. Using the least-squares regression results, calculate the Leslie's expected operating cost if it prints 600 jerseys