What is the definition of confidence level?
An example of an AI chatbot conversation about confidence levels in statistics.
What is the definition of confidence level?
The confidence level is a statistical measure that quantifies the degree of certainty in a sample estimate.
Can you explain how it's used in hypothesis testing?
Sure! In hypothesis testing, the confidence level indicates the probability that the true parameter lies within the confidence interval.
What are common confidence levels used in research?
Common confidence levels are 90%, 95%, and 99%, with 95% being the most widely used in research.
How do I calculate a confidence interval?
To calculate a confidence interval, you need the sample mean, standard deviation, and the z-score corresponding to your confidence level.
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