Statistics and hypothesis testing with Python: Essential math for data science
Take control of your data by honing your fundamental math skills
Machine learning requires strong statistical foundations. To be effective at machine learning, you need to know the difference between standard error and standard deviation, what the p-value is and why it’s important when rejecting the null hypothesis, and how to calculate the standard error for hypothesis testing.
Join expert Russell Martin to get hands-on experience with rigorous statistical analysis: parameter estimation, hypothesis testing, p-values, z-scores, and other core concepts in statistical inference. You’ll practice on real-world datasets using Python's stats-oriented libraries to ask interesting, relevant questions and draw concrete inferences from population data.
What you'll learn-and how you can apply it
By the end of this live online course, you’ll understand:
- How to use the central limit theorem in statistics
- What hypothesis testing and parameter estimation are
- How bootstrapping for parameter estimation works
And you’ll be able to:
- Perform hypothesis testing to determine if a result is statistically significant
- Calculate confidence intervals to quantify a measurement uncertainty
- Apply bootstrapping to determine confidence intervals for any general estimator
- Implement A/B testing
This training course is for you because...
- You’re in a technical role, but you’re looking to transition into a data scientist or data analyst position.
- You want to apply data-driven decision making in your position.
- You work with data and want to generate insights and analysis.
- A basic understanding of Python (variable creation, conditional statements, functions, and loops) and statistical values (mean, median, and mode)
- Take Linear Algebra with Python (live online training course)
- Take Linear Regression with Python (live online training course)
- Take Probability with Python (live online training course)
About your instructor
Russell Martin is a Data Scientist in Residence at The Data Incubator. He received his PhD in Applied Mathematics from the Georgia Institute of Technology. Russ lived and worked in the UK for seventeen years, including at Warwick University and the University of Liverpool, where he taught in the Department of Computer Science. As a Data Scientist in Residence, Russ instructs Fellows in our Data Science Fellowship, teaches online courses, and leads trainings with our corporate partners.
The timeframes are only estimates and may vary according to how the class is progressing
Introduction to statistics and statistical inference (10 minutes)
- Lecture: The Jupyter Notebook environment; statistical inference
- Group discussion: Do union or nonunion construction workers have higher salaries?
Hypothesis testing of the mean (10 minutes)
- Lecture: Mean estimation
- Hands-on exercise: Generate income samples for union workers
Standard error of the mean (10 minutes)
- Lecture: Standard error of the mean
- Hands-on exercise: Estimate the standard error
- Group discussion: Increasing sample size
Confidence intervals (10 minutes)
- Lecture: Confidence intervals
- Hands-on exercise: Calculate the confidence interval for the unionized salary mean
Hypothesis testing two means (5 minutes)
- Lecture: Null hypothesis
- Group discussion: Rejecting the null hypothesis with unknown population means
Estimating variance (5 minutes)
- Lecture: Unbiased estimator
Students’ t-distribution (15 minutes)
- Lecture: Large n assumption
- Break (5 minutes)
Standard error of proportion and variance (15 minutes)
- Lecture: Standard error of proportion; the rule of three; the standard error of variance estimate
- Hands-on exercise: Change variables to interact with SEP figures
Hypothesis testing for counts (10 minutes)
- Lecture: The chi-squared hypothesis test
- Group discussion: Where else would you use a chi-squared test?
Bootstrapping (10 minutes)
- Lecture: Subsampling data
Determining distributions (5 minutes)
- Lecture: Data matching distribution
- Hands-on activity: Apply the Kolmogorov-Smirnov test
Wrap-up and Q&A (10 minutes)