Compared to a z-score,a hypothesis test with a t statistic requires more information from the sample.

Question

Quizplus · Accepted Answer

A t statistic requires information about the sample mean, sample standard deviation, and sample size, whereas a z-score only requires information about the population mean and population standard deviation. Additionally, a t statistic is used when the population standard deviation is unknown, and therefore requires an additional calculation to estimate the standard deviation using the sample data.

Compared to a Z-Score,a Hypothesis Test with a T Statistic