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What is Confidence Interval for Unequal Variances about?

A confidence interval can be calculated for the difference between the means of two populations with unequal and unknown variances. The formula takes the difference between the sample means and adds/subtracts the margin of error, which is determined using the sample sizes, variances and a t-statistic based on the degrees of freedom. An example is provided to demonstrate calculating a 95% confidence interval.

Author

Kabayan

Language

EN