DATA ANALYST Questions and Answers

Explain what should be done with suspected or missing data?

  • Prepare a validation report that gives information of all suspected data. It should give information like validation criteria that it failed and the date and time of occurrence
  • Experience personnel should examine the suspicious data to determine their acceptability
  • Invalid data should be assigned and replaced with a validation code
  • To work on missing data use the best analysis strategy like deletion method, single imputation methods, model based methods, etc.