Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβperfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the main purpose of inference in statistics?
π‘ Hint: Think about what the term infer means.
Question 2
Easy
Define the null hypothesis.
π‘ Hint: It's often considered the default assumption in statistical testing.
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 purpose of hypothesis testing?
- To summarize data
- To make inferences based on sample data
- To collect data
π‘ Hint: Think about the role of hypothesis in research.
Question 2
True or False: A p-value of 0.03 means the null hypothesis should be accepted.
- True
- False
π‘ Hint: Consider the relationship between p-value and significance level.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A new teaching method is tested on a group of students, leading to an increase in test scores. If this method is comparable to a traditional method (H0), what statistical test would you use to compare the two methods?
π‘ Hint: Consider the nature of your data groups.
Question 2
In a study measuring the effects of sleep on performance, researchers find a p-value of 0.07. Should they reject the null hypothesis at Ξ±=0.05? What does this suggest about their findings?
π‘ Hint: Reflect on the definitions of p-value and significance.
Challenge and get performance evaluation