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Listening Quiz: Giải Thích Về Kích Thước Mẫu Và Sức Mạnh Thống Kê – Easy Level
Th5 27, 2025
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Nhà khoa học dữ liệu (English for Data Scientist)
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1.
What is Sophia mainly discussing with Mark?
How to increase effect size without changing the sample
Ways to avoid explaining statistics to coworkers
How to prepare a simple chart for a team presentation
Why sample size and statistical power matter in research
Explanation:
The conversation focuses on sample size, statistical power, and how they help produce accurate results, so the main idea is why these concepts matter in research.
2.
According to Sophia, what helps lower the chance of errors?
Skipping the team explanation
Using a smaller sample size
Choosing a more difficult chart
Increasing the sample size or effect size
Explanation:
Sophia says that higher power lowers the chance of errors, and she explains that power can be increased by increasing the sample size or effect size.
3.
What does Sophia say statistical power is?
The amount of time needed to collect data
The chance to find a real effect
A way to make a chart look simpler
The exact number of people in a group
Explanation:
Sophia directly defines statistical power as the chance to find a real effect.
4.
Why does Mark ask several follow-up questions during the conversation?
He wants to understand sample size and statistical power better
He already knows the answers and is testing Sophia
He is trying to change the subject to another topic
He disagrees with Sophia’s explanation
Explanation:
Mark asks questions such as why sample size is important and what statistical power is, which shows he is trying to understand the topic better.
5.
What will Sophia do next?
Send Mark the final research results immediately
Ask Mark to choose the sample size alone
Prepare a simple chart for the team
Increase the effect size by herself
Explanation:
Sophia says, ‘Yes, I will prepare a simple chart,’ which indicates her next action.
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Listening Lesson
Vocabulary Flashcards and Quiz
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