Suppose you are testing Ho: µ= 13 versus H1: µ # 13. The sample is small (n = 12) and the data come from a normal population. The variance, o², is unknown. (a) Should you use z or t when finding a critical region for this scenario? (b) Find the critical value(s) corresponding to a = 0.07. (c) State the critical region.

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Q: = 0.10​, find the critical​ value(s).

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