Last answered:

14 Nov 2022

Posted on:

12 Apr 2022

1

When should I use t statistic?

Do I have to use t statistic when population variance is unknown or with normally distributed populations when the sample sizes are small? I think they are two independent things. Thank you

1 answers ( 0 marked as helpful)
Posted on:

14 Nov 2022

1

You can use the the T-statistic when 1. your sample size is small (< 30) and 2. the underlying population distribution can be assumed normal. You don't need to know the population variance.

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