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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is sample size?
💡 Hint: Think about how many participants are included.
Question 2
Easy
Why is replication important in experiments?
💡 Hint: It helps ensure our findings are trustworthy.
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 is the main purpose of using a larger sample size in experiments?
- To reduce time
- To increase reliability
- To make it simpler
💡 Hint: Think about the impact of sample size on accuracy.
Question 2
True or False: A small sample size can lead to biased results.
- True
- False
💡 Hint: Consider how an unrepresentative sample can affect conclusions.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You are tasked with designing a scientific study to evaluate a new type of light bulb's lifespan. Describe how you would determine the sample size, what variables you would control, and the steps you'd take to minimize bias.
💡 Hint: Consider different brands, environments, and treatment roles.
Question 2
Analyze a case where a study on the effectiveness of a new diet utilized a sample size of 5 participants, discussing potential biases and improvements.
💡 Hint: Reflect on the diversity of the population.
Challenge and get performance evaluation