Intro to Business Analytics
Confidence level refers to the degree of certainty that a statistical estimate falls within a specified range, known as the confidence interval. It is typically expressed as a percentage, such as 90%, 95%, or 99%, indicating the probability that the interval contains the true population parameter. A higher confidence level suggests greater assurance about the estimate, but this often results in a wider interval, making it a trade-off between certainty and precision.
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