Question: In Problems 12.36 and 12.37, what are the critical values from Table E.4 if the level of significance is = 0.05 and H1 is

In Problems 12.36 and 12.37, what are the critical values from Table E.4 if the level of significance is α = 0.05 and H1 is as follows:
a. σ ≠ 12?
b. σ < 12?

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