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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does SEM stand for?
💡 Hint: It's related to the reliability of a mean value in statistics.
Question 2
Easy
If the sample size increases, what happens to the SEM?
💡 Hint: Think about how increasing data affects average accuracy.
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 relationship between sample size and SEM?
- SEM increases with sample size
- SEM decreases with sample size
- SEM is not affected by sample size
💡 Hint: Think about how more data leads to a better average.
Question 2
True or False: SEM is a measure of the spread of individual data points in a sample.
- True
- False
💡 Hint: Consider what SEM actually represents.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A researcher collects data from 50 participants regarding their reaction times. The standard deviation is found to be 15 seconds. Calculate the SEM and interpret what it implies.
💡 Hint: Use the formula SEM = s / √N.
Question 2
In an experiment where the sample mean is 200 and the SEM is 10, construct the 95% confidence interval for the population mean.
💡 Hint: Remember the z-value for a 95% confidence level.
Challenge and get performance evaluation