# (a) Determine the critical values for a right-tailed test of a standard population deviation with 18 degrees...

## Question:

**(a)** Determine the critical values for a right-tailed test of a standard population deviation with 18 degrees of freedom at \(\alpha=0.1\) level of significance.

**(b)** Determine the critical values for a left-tailed test of a standard population deviation for a sample size of \(n=30\) at \(\alpha=0.05\) level of significance.

**(c)** Determine the critical values for a two-tailed test of a standard population deviation for a sample of size \(n=23\) at \(\alpha=0.05\) level of significance.

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**Related Book For**

## Statistics Informed Decisions Using Data

**ISBN:** 9781292157115

5th Global Edition

**Authors:** Michael Sullivan