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Ross Co., Westerfield, Inc., and Jordan Company announced a newagreement 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 abnormalreturn (CAR) for these stocks as a group. Assume all companies havean expected return equal to the market return. (A negativevalue should be indicated by a minus sign. Leave no cells blank -be certain to enter "0" wherever required. Do not roundintermediate calculations. Round your answers to 1 decimalplace.)Ross Co.Westerfield, Inc.Jordan CompanyDateMarketReturnCompanyReturnDateMarketReturnCompanyReturnDateMarketReturnCompanyReturn7/12-0.6-0.32/8-0.6-0.310/11.40.67/131.20.32/9-0.7-0.310/21.30.67/160.40.32/100.40.610/30.71.37/17-0.6-0.22/110.62.110/6-0.1-0.77/18-0.81.32/12-0.10.110/7-2.2-0.77/19-1.9-0.12/151.21.910/81.20.67/20-0.9-0.32/160.70.510/9-0.5-0.67/230.60.42/17-0.1010/100.1-0.17/241.202/181.60.410/13-0.1-0.6Abnormal returns (Ri – RÂM)Days from announcementRossW’fieldJordanSumAverage abnormal returnCumulative average residual?4?3?2?101234