Use the Auction insights report to show how often her ads rank higher in search results than those of other advertisers. “
Source, explanation and more anwers: https://www.certificationanswers.com/en/maria-noticed-last-month-that-her-ad-often-showed-up-beside-competitors-ad-for-the-same-search-terms-how-can-maria-understand-how-her-performance-compares-to-that-of-other-advertisers/
In order for Maria to be able to find out her performance and to compare it from other advertisers, she needs to direct herself and to use the auction insights reports that will allow her to view in which rank she is placed in and to identify and know her performance in comparing it with other advertisers' performance.
