Question 5 0.5 pts In a semi-strong form efficient market, which of the following statement is incorrect? o It will be very difficult for investors to earn abnormal returns using private information. It will be very difficult for investors to earn abnormal returns using public information. It will be very difficult for investors to earn abnormal returns using past information. O It will be very difficult for investors to earn abnormal returns by reading stock forum discussions. Question 4 The following table shows the yearly returns for XYZ Ltd. Year Return 2019 -4.37% 2018 1.17% 2017 16.11% 2016 19.26% 2015 -23.81% 2014 - 1.47% 2013 4.29% What is the average yearly return of XYZ in %