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Tom Dushaj is a business and technology executive and the author of 'Resumes That Work.' Tom has vast experience providing solutions to Fortune 500 companies in the areas of Information Technology Consulting, ERP Software, Personnel Management, and Intern
There has been much discussion and speculation about false positives and false negatives, and not all data scientists are in 100% agreement with what is interpreted as a false negative and false negative. Let's say for example you were diagnosed with not having a disease, but after numerous tests, it was verified and confirmed that the disease was in fact still present. That would be considered a false positive. If on the other hand you were diagnosed with a disease, but found out later that you didn't have a disease, which would be considered a false negative. In this type of interview situation, the hiring manager is looking for two things. Your opinion and explanation about false positives and false negatives when it comes to dealing with data management.
Data results can be misleading at times, and you need to be able to explain why this is the case, and in your opinion how the data is viewed negatively or positively based on whatever tests were run to arrive at the result from the data. It would help to offer your perspective to the interviewer on the way you determine whether you think it's better to have too many false positives or too many false negatives to sort out.

Tom Dushaj is a business and technology executive and the author of 'Resumes That Work.' Tom has vast experience providing solutions to Fortune 500 companies in the areas of Information Technology Consulting, ERP Software, Personnel Management, and Intern
"The way I approach false negatives and false positives is to form a null hypothesis which leads you to try and reject it, thus giving me a positive result. I know that data scientists don't like the notion of swapping hypothesis, but they do give us situations where arriving at a false negative is not ideal. I've heard cases where false positives have had bad outcomes because of how the data was analyzed. Everything is not so Black and White. There are examples that have a hypothesis that cannot be switched due to the nature of science and law, which shows that errors are interchangeable. It comes down to how you design and research your study."

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Written by Tom Dushaj
28 Questions & Answers • Keyrus SA

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