Ross Co., Westerfield, Inc., and Jordan Company announced a new agreement to market their respective products in China on July 18 (7/18), February 12 (2/12), and October 7 (10/7), respectively. Given the information below, calculate the cumulative abnormal return (CAR) for these stocks as a group. Assume all companies have an expected return equal to the market return. (A negative value should be indicated by a minus sign. Leave no cells blank - be certain to enter "O" wherever required. Do not round intermediate calculations. Round your answers to 1 decimal place.) Ross Co Westerfield, Inc ordan Compan Market Company Market Company -0.7 0.4 Market Company Date Return Return -0.7 -0.7 0.6 2.6 0.1 1.8 Date Return Return 10/1 10/2 10/3 10/6 -0.10.2 10/7 1.70.2 10/8 10/9 -0.51.1 Date Return Return 7/12 7/13 7/16 -0.1 2/8 2/9 2/10 0.7 -0.2 -0.1 -0.6 0.7 0.6 -0.1 7/18 7/19 7/20 7/23 7/24 -2.4 -0.9 0.6 1.7 1.3 2/12 -0.22/15 -0.82/16 1.4 0.7 -0.1 0 10/10 0. -0.1 0.4 10/13 0.1 0.6 0 2/18 2.1