Assume that you conduct a two-tailed hypothesis test for the unknown population

Question

Assume that you conduct a two-tailed hypothesis test for the unknown population standard deviation case with (alpha) = 0.01. Assume the test statistic is t =2.602 with the sample size =20. If you apply the critical value approach, then the critical values

must be calculated by statistic software such as EXCEL, not from the t-value table.

are ± 2.539.

are ± 2.528.

are ± 2.861.  

must be calculated by statistic software such as EXCEL, not from the t-value table.

are ± 2.539.

are ± 2.528.

are ± 2.861.  

Explanation / Answer

Option-D) + 2.861

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