When conducting a one-sample Student t -test for a population mean, particularly with a small sample size, which of the following is a strict theoretical assumption required for the test statistic to follow an exact t -distribution?

Question

When conducting a one-sample Student  t -test for a population mean, particularly with a small sample size, which of the following is a strict theoretical assumption required for the test statistic to follow an exact  t -distribution?

Accepted Answer

The underlying population must be normally distributed

Answer

The sample size must be strictly greater than 30

Answer

The population variance must be completely known.

Answer

The sample standard deviation must be exactly equal to the sample mean.

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When conducting a one-sample Student t -test for a population mean, particularl...

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