Is there any sense in conducting an A/B test at α = 1?
Junior
143
Product Analyst
129
0
If each value of the sample is multiplied by 5, how will the variance change?
Junior
143
How to create a column with the 'next date' in SQL for solving a problem using ranges?
Middle
143
What is HTTP and HTTPS and how do they differ?
Middle+
143
What is the name of the effect that is hypothesized in advance and is intended to be detected?
Junior
143
What statistical criteria do you know? Which ones are used for which metrics?
Intern
143
A study was conducted that 90% of accidents are committed by sober drivers, and 10% by drunk drivers. Can this mean that sober driving is 9 times more dangerous than drunk driving? Confirm with calculations.
Junior
142
Are you willing to commute daily to the office on Belorusskaya?
Intern
142
Tell me about a case with an A/B test: what was the test and what did you do in it?
Junior
141
How would you improve the quality of responses from an AI assistant based on LangFlow, which receives a 3 out of 5 rating from users?
Middle
140
How are the duration of a test, sample size, and experiment design determined?
Junior
140
What should requirements for a product consist of? What would you include first?
Middle+
140
What are message brokers? Have you worked with Kafka? What other brokers do you know?
Middle+
139
How does the t-test differ from the z-test?
Intern
138
What is a Type I error (alpha) and a Type II error (beta)?
Intern
137
What tasks in analytics do you like the most, and which ones do you like less? What area of analytics attracts you? Are you interested in A/B testing and hypothesis testing?
Intern
137
Are you ready to engage in communication with clients on business cases?
Middle+
135
How does the system with dispatcher feedback and instructions work through RAG?
Middle+
133
Tell about a Type II error.
Junior
132
Who else is in your team, how many people and what are their roles?
Middle+
132