Practice Practical Applications in Data Science - 4.6 | 4. Statistical Inference and Hypothesis Testing | Data Science Advance
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define A/B Testing.

πŸ’‘ Hint: Think of options to compare outcomes.

Question 2

Easy

What does feature selection involve?

πŸ’‘ Hint: Consider how we choose important data points.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What statistical method is commonly used in A/B Testing?

  • Chi-square test
  • Z-test
  • Two-sample t-test

πŸ’‘ Hint: Think about how two groups are compared statistically.

Question 2

True or False: Feature selection improves model performance by using all available features.

  • True
  • False

πŸ’‘ Hint: Consider if more features always mean better performance.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A company wishes to determine whether a new website design leads to increased sales. Describe how they might use A/B testing to assess this.

πŸ’‘ Hint: Think about the comparison methodology.

Question 2

Consider a dataset where you suspect certain demographic variables might not influence customer satisfaction. How would you approach feature selection?

πŸ’‘ Hint: Consider the types of tests for analyzing means.

Challenge and get performance evaluation