Test Hypotheses About a Population Proportion
-Test the Claim That $\sigma < 21.33$

Short Answer

Test Hypotheses about a Population Proportion
-Test the claim that $\sigma < 21.33$ if $\mathrm { n } = 28 , \mathrm {~s} = 16.83$ and $\alpha = 0.10$ . Assume that the population is normally distributed.