Question 1043453
 Find the critical value and rejection region for the type of chi-square test with sample size n and level of significance a(alpha). 
Two-tailed test,
n=12, a(alpha)=0.05
---------------------------3.816  21.920
You need a Chi-Sq Chart--- your text might have one
or you might find one online.
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Since n = 12, the # of degrees of freedom is 11
Look for that on your chart.
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A 2-tail test with alpha = 5% has a left tail of 0.025
and a right tail of 0.975
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The rejection regions on the chart are 
lower:: Chi-Sq < 3.816
upper:: Chi-sq > 21.920
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Cheers,
Stan H.