Follow up doubt to my previous doubt

https://trainity.sleekplan.app/feedback/93931 The dataset for the project is small you are just need to highlight the errors and the null values. After that you can work with the data. Okay, but is it okay if I exclude the errors and null values from analysis. LIke for Question A, should I exclude "-" and "Don't want to say" of event_name from analysis ?Similarly for question B and C, is it okay to exclude outliers and null values of Offered Salaryfrom analysis? And for question E, is it okay to exclude "-" of Post Name from analysis?