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SAP Interview Questions

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

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What are the Z and t-tests? What are they used for? What is the difference between them? When should use one over the other?

Which statistical test, the Z or t test, is more appropriate for tests with small sample sizes?

Which statistical test, the Z or t test, is more appropriate for tests with small sample sizes?

Z and t Tests I

What happens to the t-distribution as the degrees of freedom (ν) gets large?

What happens to the t-distribution as the degrees of freedom (ν) gets large?

Z and t Tests II

What is the difference between the Z and t tests?

Z and t-Tests

Let’s say that your company is running a standard control and variant AB test on a feature to increase conversion rates on the landing page. The PM checks the results and finds a .04 p-value.

How would you assess the validity of the result?

Experiment Validity

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

What is a key disadvantage of the F-test when compared to multiple t-tests?

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

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