The t-distribution allows the calculation of confidence intervals for means when the actual standard error is not known.

Name: The t-distribution allows the calculation of confidence intervals for means when the actual standard error is not known.
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Quizplus · Accepted Answer

This is true. The t-distribution is used when the population standard deviation is unknown and must be estimated from the sample data, allowing the calculation of confidence intervals for the population mean.

The T-Distribution Allows the Calculation of Confidence Intervals for Means