Test Hypotheses About a Population Proportion
-Compute the Standardized Test $\chi ^ { 2 }$

Multiple Choice

Test Hypotheses about a Population Proportion
-Compute the standardized test statistic, $\chi ^ { 2 }$ , to test the claim $\sigma ^ { 2 } = 38.7$ if $n = 12 , \mathrm {~s} ^ { 2 } = 32.4$ , and $\alpha = 0.05$ .

A) $9.209$
B) $12.961$
C) $18.490$
D) $0.492$