Topic 5: Statistical Inference
Lesson 5.4: Confidence Intervals For The Mean — Quiz
Test your understanding of lesson 5.4: confidence intervals for the mean with 5 practice questions.
Practice Questions
Question 1
What is the purpose of a confidence interval in statistics?
Question 2
Which distribution do you use for constructing a confidence interval when the population standard deviation is unknown and the sample size is small?
Question 3
If the sample size increases, how does the width of the confidence interval for the mean change?
Question 4
What is the formula for a confidence interval for the mean when using the t-distribution?
Question 5
What effect does increasing the confidence level have on the width of the confidence interval?