Last answered:

11 Jan 2022

Posted on:

30 Dec 2021

0

Which Test test statistic should be used?

Which test statistic should be used if you have
1. large sample size with unknown variance.
2. small sample size with known variance

1 answers ( 0 marked as helpful)
Posted on:

11 Jan 2022

0

Hey Sylvester :
When the sample size >30, z statistic should be used.
When the sample size <30, t statistic should be used, regardless of whether the population variance is known or not

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