What is a core deliverable at the end of the analytic project?

You have been assigned to run a logistic regressionmodel for each of 100 countries, and all the data is
currently stored in a PostgreSQL database. Which tool/library would you use to produce these models with the
least effort?

Your organization has a website where visitors randomly receive one of two coupons. It is also possible that
visitors to the website will not receive a coupon. You have been asked to determine if offering a coupon to
visitors to your website has any impact on their purchase decision.
Which analysis method should you use?

Imagine you are trying to hire a Data Scientist foryour team. In addition to technical ability and quantitative
background, which additional essential trait would you look for in people applying for this position?

What describes the use of UNION clause in a SQL statement?

You have run the association rules algorithm on your data set, and the two rules {banana, apple} => {grape}
and {apple, orange}=> {grape} have been found to berelevant. What else must be true?

When would you use a Wilcoxson Rank Sum test?

In the MapReduce framework, what is the purpose of the Reduce function?

Which of the following is an example of quasi-structured data?

A Data Scientist is assigned to build a model from a reporting data warehouse. The warehouse contains data
collected from many sources and transformed througha complex, multi-stage ETL process. What is a concern
the data scientist should have about the data?